Mental health
What a Panic Attack Feels Like — and How to Tell It Apart from Other Causes
A panic attack is a sudden surge of intense fear or physical distress — racing heart, chest tightness, shortness of breath, dizziness, tingling — that peaks within about ten minutes and usually subsides within twenty to thirty minutes. The symptoms come from a genuine adrenaline surge and can feel indistinguishable from a cardiac emergency.
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Amelia Reyes, LCSW — Behavioral Health Clinician
anxiety, depression & burnout. Gale can match you with a licensed clinician for a visit.
Find care →What are the hallmark symptoms of a panic attack?
Panic attacks typically arrive fast — a wave that builds to peak intensity within minutes. The experience usually includes several of the following:
Physical: Heart pounding or racing, chest pain or tightness, shortness of breath or feeling unable to get a full breath, dizziness or feeling faint, sweating, trembling or shaking, nausea or stomach upset, numbness or tingling (often in the hands, feet, or face), chills or hot flushes.
Mental: An overwhelming sense that something terrible is happening. A feeling of unreality — that you or your surroundings seem strange or detached (called derealization or depersonalization). And often: a genuine, terrifying conviction that you are dying, having a heart attack, or losing your mind. That last feature — the certainty that catastrophe is happening right now — is one of the defining characteristics of a panic attack 1Ref 1National Institute of Mental Health (2023).Anxiety Disorders.Supports the description of panic attack symptoms, the sense of doom as a defining feature, the distinction between unexpected and situational attacks, and panic disorder diagnostic criteria..
Why does a panic attack feel so real?
The brain's alarm system misfires and triggers the same full-body stress response it would generate for a life-threatening emergency. Adrenaline floods the body. The heart actually does race. You actually do feel short of breath — because stress hormones tighten the chest and drive rapid, shallow breathing. These symptoms are not manufactured or exaggerated; they are the real physiological output of a real alarm signal that fired when it did not need to.
This is also why telling someone in a panic attack to "just calm down" is not effective. The body's emergency system is running, and it takes time to metabolize the adrenaline and deactivate.
What is the difference between one panic attack and panic disorder?
Panic attacks come in two broad forms:
Unexpected (out of the blue): Occur without an obvious trigger — while driving, watching television, or even during sleep. These tend to be most alarming because there is nothing obvious to explain them.
Situational or expected: Tied to a specific trigger — a phobia, a traumatic reminder, or a high-stress situation.
Panic disorder is the diagnosis when unexpected panic attacks recur and you begin worrying about having more of them, or change your behavior to avoid them — such as avoiding driving or crowded places 1Ref 1National Institute of Mental Health (2023).Anxiety Disorders.Supports the description of panic attack symptoms, the sense of doom as a defining feature, the distinction between unexpected and situational attacks, and panic disorder diagnostic criteria.. A single panic attack does not mean panic disorder, but it is still worth discussing with a clinician, particularly when the symptoms are severe or cardiac causes have not been ruled out.
Clinicians and researchers in primary care recognize that panic disorder and generalized anxiety disorder frequently co-occur and warrant thorough clinical evaluation to distinguish them 2Ref 2DeGeorge KC, Grover M, Streeter GS (2022).Generalized Anxiety Disorder and Panic Disorder in Adults.Supports the clinical discussion of panic disorder in primary care, its co-occurrence with GAD, and the need for thorough evaluation to distinguish them..
What helps during and after a panic attack?
In the moment: Slow, controlled breathing — breathing out for longer than you breathe in — signals the nervous system to wind down. Grounding techniques (naming five things you can see, four you can touch) can interrupt the mental spiral.
Longer term: Cognitive behavioral therapy (CBT), including a method called interoceptive exposure, is among the most effective approaches. It helps you learn that the physical sensations, while unpleasant, are not dangerous 3Ref 3Hofmann SG, Asnaani A, Vonk IJJ, Sawyer AT, Fang A (2012).The Efficacy of Cognitive Behavioral Therapy: A Review of Meta-analyses.Supports CBT including interoceptive exposure as an effective long-term treatment for panic attacks and panic disorder.. Medication can reduce the frequency and severity of attacks. These approaches work, often together.
The USPSTF recommends that adults be screened for anxiety disorders, including panic disorder, given the availability of effective treatments 4Ref 4US Preventive Services Task Force (2023).Screening for Anxiety Disorders in Adults: US Preventive Services Task Force Recommendation Statement.Supports the statement that USPSTF recommends anxiety screening for adults, including for panic disorder, given effective treatments are available..
Common questions
How do I know if I had a panic attack or a heart attack?
In the moment, this distinction can be genuinely difficult to make. Features that lean toward panic include: sudden onset peaking within minutes, multiple physical symptoms alongside intense fear or sense of doom, full resolution within 20-30 minutes, younger age, and no cardiac risk factors. Features that warrant emergency evaluation include: chest pain that radiates to the arm or jaw, symptoms that worsen with physical activity, symptoms that do not fully resolve, and being over 40 or having cardiac risk factors. When in doubt, seek emergency evaluation — do not rule out a cardiac event on your own.
Can a panic attack happen while asleep?
Yes. Nocturnal panic attacks are a recognized phenomenon — you wake suddenly from sleep in a state of intense physical distress. They are not the same as nightmares and are believed to involve the same alarm-system misfiring that causes daytime panic attacks.
Does caffeine actually trigger panic attacks?
For people prone to panic attacks, caffeine is a recognized trigger. It stimulates the same physiological arousal — faster heart rate, increased alertness, slight tremor — that mimics the early sensations of panic, which can be enough to set off a full attack. Reducing or eliminating caffeine often reduces attack frequency.
Is one panic attack enough to diagnose panic disorder?
No. Panic disorder requires recurrent unexpected attacks plus persistent concern about having more or significant behavioral changes in response. A single panic attack, even a severe one, is not sufficient for that diagnosis — but it is still worth clinical evaluation to rule out medical causes and discuss options.
What is interoceptive exposure and why is it used for panic?
Interoceptive exposure is a CBT technique in which a therapist guides you to deliberately produce mild versions of the physical sensations that trigger panic — spinning in a chair, breathing through a coffee straw — in a controlled setting. The goal is to learn through direct experience that those sensations are uncomfortable but not dangerous. This breaks the fear-of-sensations cycle that drives panic disorder.
Talk to a clinician
Amelia Reyes, LCSW — Behavioral Health Clinician
anxiety, depression & burnout. Gale can match you with a licensed clinician for a visit.
Find care →When to seek emergency care
- —Chest pain that is crushing, pressure-like, or radiates to your arm, jaw, or back — call 911; do not assume panic
- —Symptoms that worsen with physical exertion or do not improve at rest
- —First-ever episode of racing heart or chest pain in someone over 40 or with cardiac risk factors — needs medical evaluation
- —Fainting or near-fainting (syncope) — rule out a heart rhythm problem first
- —Symptoms that do not fully resolve within 30-60 minutes
- —Panic attacks leading to thoughts of suicide or self-harm — call or text 988 now
If there is any real chance the chest pain or shortness of breath has a cardiac cause — especially if you are over 40, have cardiac risk factors, or this is your first episode — call 911. Do not rule out a cardiac event on your own. For suicidal thoughts, call or text 988.
This article is for general educational purposes and is not a diagnosis. If you experienced chest pain, shortness of breath, or racing heart — especially for the first time or if you have cardiac risk factors — please see a clinician. Call 911 if you think you may be having a cardiac emergency.
References
- 1.National Institute of Mental Health (2023). Anxiety Disorders. NIMH Health Topics. link ✓Supports the description of panic attack symptoms, the sense of doom as a defining feature, the distinction between unexpected and situational attacks, and panic disorder diagnostic criteria.
- 2.DeGeorge KC, Grover M, Streeter GS (2022). Generalized Anxiety Disorder and Panic Disorder in Adults. American Family Physician. PMID 35977134 ✓Supports the clinical discussion of panic disorder in primary care, its co-occurrence with GAD, and the need for thorough evaluation to distinguish them.
- 3.Hofmann SG, Asnaani A, Vonk IJJ, Sawyer AT, Fang A (2012). The Efficacy of Cognitive Behavioral Therapy: A Review of Meta-analyses. Cognitive Therapy and Research. doi:10.1007/s10608-012-9476-1 ✓Supports CBT including interoceptive exposure as an effective long-term treatment for panic attacks and panic disorder.
- 4.US Preventive Services Task Force (2023). Screening for Anxiety Disorders in Adults: US Preventive Services Task Force Recommendation Statement. JAMA. doi:10.1001/jama.2023.9301 ✓Supports the statement that USPSTF recommends anxiety screening for adults, including for panic disorder, given effective treatments are available.
4 sources, numbered by first appearance. General health information, not medical advice — synthetic demonstration content.