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Anxiety · 14 min read
Types of Anxiety Disorders: GAD, Panic Disorder, and Social Anxiety Explained
Everyone feels anxious sometimes. A big presentation, a medical test, or a hard conversation can make the heart race and the mind spin. For many people that feeling fades once the moment passes. For others, it does not. The worry lingers for months, arrives in sudden waves, or makes ordinary social situations feel unbearable.
There is more than one kind of anxiety disorder, and the differences matter because they affect how a condition is recognized and treated. This guide explains three of the most common types: generalized anxiety disorder (GAD), panic disorder, and social anxiety disorder. It is educational and cannot diagnose you or anyone else. Seeing yourself in a description below does not mean you have a particular condition. Only a qualified clinician can make that determination.
What Is an Anxiety Disorder?
An anxiety disorder is a mental health condition in which fear or worry is excessive, persistent, and disruptive to daily life. Anxiety disorders form the most common group of mental disorders and generally start before or in early adulthood (Penninx et al., 2021).
The World Health Organization estimates that 5.8% of the global population currently experience an anxiety disorder, making anxiety disorders the most common mental disorders worldwide (WHO, 2026). Epidemiological studies show a relatively high ratio of one-year to lifetime prevalence for anxiety disorders, indicative of a chronic, recurrent nature (Penninx et al., 2021).
The National Institute of Mental Health (NIMH) explains that occasional anxiety is a normal part of life, but with an anxiety disorder the anxiety does not go away and can get worse over time, interfering with job performance, schoolwork, and relationships.
Research suggests that both genetic and environmental factors contribute to the risk of developing an anxiety disorder. Anxiety disorders may be neurodevelopmental in their origins, and genetic and epigenetic influences on brain development and function are thought to be central to how they develop (Zientek et al., 2026).
Anxiety disorders, like other mental health conditions, result from a complex interaction of social, psychological and biological factors. Anxiety disorders are closely related to and affected by physical health. Many of the impacts of anxiety (such as physical tension, nervous system hyperactivity or harmful use of alcohol) are also known risk factors for diseases such as cardiovascular disease (WHO, 2026).
Vulnerability and risk factors for all anxiety disorders include female sex and a family history of anxiety or depressive disorders (Craske et al., 2017).
Fear and anxiety are related but not the same. Fear is the response to an immediate threat, while anxiety is anticipation of a future one. Clinicians generally treat them as distinct, which is why phobias (fear), generalized anxiety disorder (anxiety) and panic disorder or social anxiety (a mix of both) are described separately, although research continues to debate how sharp that line really is (Daniel-Watanabe & Fletcher, 2021).
Anxiety is not a character flaw, a lack of willpower, or a sign of weakness.
The main categories include generalized anxiety disorder, panic disorder, social anxiety disorder, and phobia-related disorders such as specific phobias and agoraphobia. Obsessive-compulsive disorder and post-traumatic stress disorder were historically grouped with anxiety disorders, and current diagnostic manuals classify them separately, though they are closely related and often discussed alongside anxiety.
The Diagnostic and Statistical Manual of Mental Disorders, 5th edition, Text Revision (DSM-5-TR) lists the recognized anxiety disorders in order of typical age of onset:
- 01Separation anxiety disorder
- 02Selective mutism
- 03Specific phobia (animal, natural environment, blood-injection injury, situational)
- 04Social anxiety disorder
- 05Panic disorder
- 06Agoraphobia
- 07Generalized anxiety disorder
- 08Substance-induced/medication-induced anxiety disorder
- 09Anxiety due to another medical condition
- 10Other specified or unspecified anxiety disorder (applies when patient has significant symptoms but does not meet complete criteria for any specific anxiety disorder)
At a Glance: GAD, Panic Disorder, and Social Anxiety
| Generalized anxiety disorder (GAD) | Panic disorder | Social anxiety disorder | |
|---|---|---|---|
| Core feature | Ongoing, hard-to-control worry about many everyday things | Unexpected, repeated panic attacks, plus ongoing concern about more attacks | Intense fear of being watched, judged, or embarrassed |
| Pattern over time | Steady and long-lasting, often months or years | Sudden waves that peak quickly, with worry in between | Triggered by social or performance situations, with anticipation beforehand |
| Common physical signs | Restlessness, fatigue, muscle tension, sleep problems | Racing heart, sweating, trembling, chest discomfort, shortness of breath | Blushing, sweating, trembling, racing heart, stomach upset |
| Common avoidance | Procrastinating, over-planning, seeking reassurance | Avoiding places or activities linked to past attacks | Avoiding gatherings, speaking up, or being the center of attention |
This table is a general orientation, not a diagnostic tool. Symptoms overlap, and many people have more than one condition at once.
What Is Generalized Anxiety Disorder (GAD)?
GAD is a condition marked by frequent, hard-to-control worry about many areas of life which lasts for months and is out of proportion to the actual situation. It is not the same as worrying now and then during a stressful time.
The worry in GAD tends to attach itself to ordinary things: Health, money, family, relationships, or how a piece of work will turn out. It is persistent enough to get in the way of daily functioning, and it usually travels with physical symptoms such as restlessness, poor sleep, tiredness, irritability, sweating and trembling (Mishra & Varma, 2023).
Common symptoms of GAD
NIMH lists symptoms that include:
01Feeling restless, wound-up, or on edge
02Being easily fatigued
03Difficulty concentrating
04Irritability
05Muscle tension
06Difficulty controlling the worry
07Sleep problems, such as trouble falling or staying asleep
For a formal diagnosis of GAD, symptoms must be persistent and consistent for at least six months (Mishra & Varma, 2023).
Some people also have headaches, stomachaches, or unexplained aches and pains.
How GAD tends to feel
People with GAD often describe a mind that jumps from one "what if" to the next. When one concern is resolved, another takes its place. Many are aware that they worry more than the situation calls for, yet find they cannot turn it off.
For example, someone might spend hours rehearsing worst-case scenarios about a minor work email, then feel exhausted, tense, and unable to sleep. The worry is not a choice, and reassurance rarely brings lasting relief.
How long symptoms last
Diagnostic criteria for GAD generally look for excessive worry occurring on most days for at least six months, along with several of the symptoms above, causing distress or interference in daily life. A clinician decides whether criteria are met.
What Is Panic Disorder?
Panic disorder involves unexpected, repeated panic attacks, along with persistent worry about having more attacks or changing behavior to avoid them. A panic attack is a sudden surge of intense fear or discomfort that typically peaks within minutes.
Panic disorder is a complex, heterogeneous, multifactorial and polygenic disorder. This heterogeneity complicates not only diagnosis but also treatment outcomes and prognosis (Kim, 2019).
What a panic attack can feel like
During a panic attack, a person may experience:
01A pounding or racing heart
02Sweating, chills, or trembling
03Shortness of breath or a feeling of choking
04Chest pain or tightness
05Nausea or dizziness
06Tingling or numbness
07Feeling detached or unreal
08A sense of losing control or impending doom
Because these sensations are physical and frightening, people sometimes believe they are having a heart attack. If you have chest pain or are unsure what is happening, seek urgent medical care. Do not assume it is anxiety.
Panic attack versus panic disorder
This distinction is important. Having a panic attack does not mean you have panic disorder. NIMH notes that not everyone who experiences a panic attack will develop panic disorder, and many people have one attack and never have another.
Panic disorder is different. Attacks come without a clear trigger, and the person begins to worry about the next one. That worry can lead to avoidance of places, situations, or activities associated with past attacks. Attacks may occur as often as several times a day or as rarely as a few times a year.
Panic disorder and agoraphobia
When avoidance grows, it can become agoraphobia: Intense fear of situations such as public transportation, open spaces, crowds, or being outside the home alone, often because escape might be hard or help might be unavailable. Agoraphobia can occur with or without panic disorder. Early evaluation and treatment may reduce the chance that avoidance becomes more restrictive.
What Is Social Anxiety Disorder?
Social anxiety disorder is a chronic psychiatric disorder characterized by intense, persistent fear of being watched, judged, or embarrassed in social or performance situations (Alomari et al., 2022). It goes well beyond ordinary shyness or nerves.
The DSM-5 criteria for social anxiety disorder include eight components (Alomari et al., 2022):
✓Fear of social situations
✓Continuous triggering of anxiety by social situations
✓Exaggerated fear that is out of proportion to the seriousness of the threat posed by social situations
✓Avoidance of social situations due to intense fear, impaired social or occupational functions
✓The persistence of fear for six months
✓The fear not being attributed to any substance use
✓Symptoms that cannot be explained by another mental illness, and
✓Avoidance that is not related to a medical condition such as Parkinson's disease or obesity
Common symptoms of social anxiety disorder
Situations that may trigger symptoms include meeting new people, attending gatherings, speaking in meetings, eating in front of others, or being observed while performing a task. Physical and behavioral signs may include:
01Blushing, sweating, or trembling
02A pounding heart
03Stomachaches or nausea
04Rigid body posture
05Speaking very softly or going blank
06Avoiding eye contact
People with social anxiety often know their fear is stronger than the situation warrants, yet still feel powerless to stop it. They may worry for days before an event and replay conversations afterward, looking for mistakes.
Shyness versus social anxiety disorder
Shyness is a personality trait and does not necessarily interfere with life. Social anxiety disorder causes significant distress and can lead to avoiding school, work, or relationships. A clinician looks at how intense and persistent the fear is, and how much it limits your life.
Other Anxiety-Related Conditions
Three conditions do not cover the whole picture. Other anxiety-related diagnoses include:
Agoraphobia
Intense fear of situations where escape might be hard or help unavailable. See the panic disorder section above.
Separation anxiety disorder
Excessive fear about separation from attachment figures, which can occur in adults as well as children
Selective mutism
Failing to speak in specific social situations despite normal language skills
Substance- or medication-induced anxiety disorder
Anxiety linked to intoxication, withdrawal, or certain medications
If your experience does not fit neatly into one category, that is common. Clinicians evaluate the full picture rather than matching you to a checklist.
Why Anxiety Disorders Can Be Hard to Tell Apart
The disorders above share features such as worry, physical tension, and avoidance, which is one reason a professional evaluation matters. Several additional factors complicate things:
Overlap among anxiety disorders
It is common to have more than one.
Co-occurring conditions
Anxiety often appears alongside depression, substance use concerns, and other conditions. It can also coexist with ADHD, where difficulty concentrating and feeling overwhelmed can be hard to attribute to just one cause.
Medical conditions
NIMH notes that anxiety symptoms can be produced or aggravated by some physical health conditions, such as thyroid problems or heart arrhythmia, and by caffeine, other substances, or certain medications.
Physical symptoms that mimic other illnesses
Racing heart or chest discomfort can resemble cardiac problems, which is why a medical check is often part of the process.
Because of this overlap, it is not possible to reliably diagnose yourself. NIMH suggests that a physical examination can help rule out other causes and guide the right treatment.
When Does Anxiety Become a Concern?
Occasional anxiety is normal. Consider talking with a qualified healthcare or mental health professional if you notice:
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These experiences do not automatically mean you have an anxiety disorder, and many conditions can cause them. An evaluation helps clarify what is happening and what support might help.
If you are in crisis or having thoughts of harming yourself, call or text 988 (the Suicide & Crisis Lifeline in the U.S.) or call 911 in an emergency. If you have chest pain, trouble breathing, or any symptom you think could be a medical emergency, seek urgent care.
What Does an Anxiety Evaluation Involve?
There is no single blood test or scan that confirms an anxiety disorder. Evaluation is a clinical process. Here is what to expect during a visit:
- 1A clinical interview about current symptoms, when they started, how long they last, and what makes them better or worse
- 2Personal history, including medical history, mental health history, family history, medications, caffeine, alcohol, and other substances
- 3Questions about daily functioning at work, in relationships, and at home
- 4Standardized questionnaires, which clinicians may use to gauge symptom severity (a score alone is not a diagnosis)
- 5Screening for other conditions, such as depression, sleep problems, ADHD, trauma-related symptoms, or medical issues
- 6Coordination with a primary care provider when physical causes need to be ruled out
You do not need to prepare perfect answers. Notes about when symptoms occur, what triggers them, and how they affect your life can be helpful.
Treatment Options for Anxiety Disorders
The outlook for anxiety disorders is encouraging because effective treatments exist, although the right plan depends on the individual. NIMH notes that anxiety disorders are generally treated with psychotherapy, medication, or both, and encourages people to work with a health care provider to choose the best approach.
Psychotherapy
Cognitive behavioral therapy (CBT) is a well-studied approach. It helps people identify unhelpful thought patterns and gradually change behaviors that keep anxiety going. Exposure-based approaches, in which a person gradually and safely faces feared situations or sensations, may be used for panic disorder, social anxiety, and phobias. Acceptance and commitment therapy (ACT), which uses mindfulness and values-based goals, is another option, though NIMH notes less research is available on it than on CBT.
Medication
Medication does not cure anxiety disorders, but it can help relieve symptoms for some people. Options vary and are prescribed and monitored by a qualified clinician. Never start, stop, or change a medication without professional guidance.
Lifestyle and self-management
Sleep, regular physical activity, limiting caffeine and alcohol, and stress-management skills can support treatment. They are helpful additions, not replacements for professional care when anxiety is significantly disrupting your life.
Treating co-occurring conditions
When anxiety appears alongside depression, ADHD, or other conditions, a good treatment plan addresses the whole picture.
Plans should be individualized, and no clinician can promise a specific outcome. If you are looking for care locally, Lumos Clinical is a mental health practice serving the San Jose and Los Gatos area of California. You can learn more about anxiety treatment in San Jose and Los Gatos on the clinic's anxiety page.
Questions to Ask a Provider
✓What does the evaluation involve, and how many visits should I expect?
✓How will you tell whether my symptoms point to GAD, panic disorder, social anxiety, or something else?
✓Will you screen for depression, ADHD, sleep problems, or medical causes?
✓What treatment options exist, and how do you decide among them?
✓How will we measure progress?
✓What should I do if symptoms get worse between visits?
Anxiety Disorders: Frequently Asked Questions
The most common are generalized anxiety disorder, panic disorder, social anxiety disorder, and phobia-related disorders such as specific phobias and agoraphobia. A clinician can determine which, if any, applies to you.
GAD involves ongoing, hard-to-control worry about many things. Panic disorder involves sudden, unexpected panic attacks and persistent concern about having more. Some people have both.
"Anxiety attack" is a common phrase rather than a formal diagnosis. "Panic attack" is a defined term for an abrupt surge of intense fear with physical symptoms that peaks within minutes. Anxiety that builds more gradually in response to stress is not typically called a panic attack.
Not necessarily. Many people have a panic attack once or occasionally and never develop panic disorder. If attacks are repeated, unexpected, and cause ongoing worry or avoidance, it is worth discussing with a professional.
Diagnostic criteria generally look for excessive worry on most days for at least six months, along with other symptoms and impairment. A clinician makes the determination.
No. Shyness is a personality trait. Social anxiety disorder involves intense, persistent fear that causes significant distress and often leads to avoiding social or performance situations.
Yes. Overlap is common, and anxiety disorders also frequently occur alongside depression and other conditions.
Yes. Conditions such as thyroid problems or heart rhythm issues, as well as caffeine, other substances, and some medications, can cause or worsen anxiety-like symptoms. This is why a medical review is often part of an evaluation.
There is no single cause. Researchers point to a combination of genetic and environmental factors, and having relatives with anxiety or other mental health conditions can raise risk.
Yes. Psychotherapy, medication, or a combination are commonly used, and plans are individualized. Outcomes vary from person to person.
CBT is among the most studied approaches, and exposure-based methods are often used for panic, social anxiety, and phobias. The best fit depends on the person and condition, so a clinician can help you choose.
Not always. Some people benefit from therapy alone, while others use medication or both. This is a decision to make with a qualified prescriber.
Consider reaching out if worry, panic, or avoidance is persistent, hard to control, or interfering with work, relationships, sleep, or daily life.
Typically an interview about symptoms and history, possible questionnaires, screening for other conditions, and a discussion of next steps. Exact steps vary by provider.
Lumos Clinical is a mental health practice serving San Jose and Los Gatos. Contact the clinic directly to ask about services, availability, and insurance.
Sources
- World Health Organization. Anxiety disorders (fact sheet, 15 September 2026).
- Penninx BW, Pine DS, Holmes EA, Reif A. Anxiety disorders. Lancet. 2021;397(10277):914-927. doi:10.1016/S0140-6736(21)00359-7
- Craske MG, Stein MB, Eley TC, et al. Anxiety disorders. Nat Rev Dis Primers. 2017;3:17024. doi:10.1038/nrdp.2017.24
- Daniel-Watanabe L, Fletcher PC. Are fear and anxiety truly distinct? Biol Psychiatry Glob Open Sci. 2021;2(4):341-349. doi:10.1016/j.bpsgos.2021.09.006
- Mishra AK, Varma AR. A comprehensive review of the generalized anxiety disorder. Cureus. 2023;15(9):e46115. doi:10.7759/cureus.46115
- Kim YK. Panic disorder: current research and management approaches. Psychiatry Investig. 2019;16(1):1-3. doi:10.30773/pi.2019.01.08
- Alomari NA, Bedaiwi SK, Ghasib AM, et al. Social anxiety disorder: associated conditions and therapeutic approaches. Cureus. 2022;14(12):e32687. doi:10.7759/cureus.32687
- Zientek KA, Dukart J, Kreuzer S, et al. Beyond fear circuits: multiscale neurobiological architecture of panic disorder. Mol Psychiatry. 2026;31:5800-5810.
- National Institute of Mental Health. Anxiety Disorders. Health topics, nimh.nih.gov.
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