This is not a medical device.
If this is your first episode, or you have chest pain, pain spreading to your arm or jaw, or you are fainting, please seek immediate emergency care.
Panic Attack Symptoms: Why Your Body Reacts This Way
Why does panic cause a racing heart, tingling, chest tightness, and feeling unreal? Each panic attack symptom explained, plus symptoms that need a doctor.
Do this first, read later
- 1Racing heart = adrenaline pumping more blood to your muscles.
- 2Tingling hands or face = low carbon dioxide from fast breathing.
- 3Feeling unreal (derealization) = the brain narrowing focus under overload.
- 4Chest tightness = tense chest-wall muscles and over-breathing, if your heart has been checked.
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The official list of panic attack symptoms
Clinicians define a panic attack as an abrupt surge of intense fear or discomfort that peaks within minutes and includes at least four of the following 13 symptoms. Attacks with fewer than four are sometimes called limited-symptom attacks. They are still unpleasant, but milder.
- Pounding heart, palpitations, or a fast heart rate
- Sweating
- Trembling or shaking
- Shortness of breath or a smothering feeling
- A choking sensation
- Chest pain or discomfort
- Nausea or abdominal distress
- Dizziness, unsteadiness, lightheadedness, or feeling faint
- Chills or heat sensations
- Numbness or tingling
- Feeling unreal (derealization) or detached from yourself (depersonalization)
- Fear of losing control or "going crazy"
- Fear of dying
Why every symptom has a purpose
Almost every panic symptom is a normal part of the fight-or-flight response. If you were facing a real physical threat, these changes would help you fight or escape. During a panic attack, the same response fires without a real threat, so the changes feel strange and frightening instead of useful. Understanding the purpose of each one is one of the most effective ways to make them less scary.
Heart symptoms: pounding, racing, skipping
Adrenaline makes the heart beat faster and more forcefully to push more blood to large muscles. Heart rates of 120 to 150 beats per minute, and sometimes higher, can happen in panic. You may also notice extra or skipped beats, which are common and usually harmless, but you become far more aware of them when you are scanning your body for danger.
Breathing symptoms: breathlessness, smothering, choking
Breathing speeds up automatically to take in more oxygen for action. Sitting still, this becomes over-breathing, which lowers the carbon dioxide in your blood. Paradoxically, this creates a feeling of not getting enough air. A choking or lump-in-the-throat feeling is usually tension in the throat muscles and is not a blocked airway.
Chest pain and tightness
Chest discomfort in panic usually comes from tense muscles in the chest wall, the effort of fast upper-chest breathing, and sometimes stomach or esophagus spasms. It is often sharp or stabbing and located in one spot, or it feels like a band of tightness.
However, chest pain is also the most important symptom to take seriously. Doctors cannot always tell panic from a heart problem without tests, and neither can you. Get urgent medical help for any first-time chest pain, pain that spreads to your arm, jaw, neck, or back, or pain that feels crushing or comes on with exertion.
Tingling, numbness, dizziness, and feeling faint
Low carbon dioxide from over-breathing narrows blood vessels in the brain and makes nerves more excitable. The result is lightheadedness, a floaty feeling, and pins and needles, typically in the fingers, around the mouth, and in the face. Tingling in panic is usually on both sides. Numbness or weakness on only one side of the body is not typical of panic and needs emergency assessment.
Despite feeling faint, actually fainting during a panic attack is uncommon, because heart rate and blood pressure usually rise rather than fall. The main exception is people with a blood, injection, or injury phobia, where a drop in blood pressure after the initial surge can cause genuine fainting.
Sweating, chills, shaking, and nausea
Sweating cools the body in advance of physical effort. Hot flushes and chills come from blood vessels in the skin opening and closing as blood is redirected. Trembling comes from muscles primed with adrenaline and tension. Nausea and "butterflies" happen because digestion is not a priority in an emergency, so blood is diverted away from the gut and its movement changes.
Feeling unreal: derealization and depersonalization
Derealization is a feeling that the world around you is dreamlike, foggy, or far away. Depersonalization is feeling detached from your own body or thoughts, as if watching yourself. Both are some of the most frightening panic symptoms, because they can feel like "going crazy".
They are thought to reflect the brain narrowing its processing under extreme arousal, together with the effects of over-breathing. They are temporary, and they are not a sign of psychosis or of losing your mind. Grounding through strong sensory input, such as cold, touch, or naming objects aloud, often helps them fade faster.
Conditions that can mimic panic attacks
Before diagnosing panic disorder, doctors check for physical causes that can produce similar symptoms. It is worth being assessed at least once, especially if attacks are new.
- Heart rhythm problems such as supraventricular tachycardia or atrial fibrillation
- An overactive thyroid (hyperthyroidism)
- Asthma or other lung conditions
- Low blood sugar, especially in people with diabetes
- Too much caffeine, energy drinks, decongestants, or stimulant medication
- Withdrawal from alcohol, sedatives, or other substances
- Rarely, adrenal tumors such as pheochromocytoma
Breathe with the circle: 4 in, 6 out
Your heart naturally slows a little on every out-breath. Making the exhale longer than the inhale gives your body more of that slowing phase. Keep going for a couple of minutes.
Frequently Asked Questions
Can you faint during a panic attack?
It is uncommon. In panic, heart rate and blood pressure usually rise, which works against fainting. The exception is people with a blood, injection, or injury phobia, where blood pressure can drop suddenly after the initial surge.
Can a panic attack cause left arm pain?
Muscle tension and tingling from over-breathing can affect the arms. But pain spreading to the left arm, jaw, or back is also a classic heart attack warning sign, so treat it as an emergency unless a doctor has already assessed that exact pattern.
What does a mild panic attack feel like?
A limited-symptom attack might involve a sudden rush of fear with just a racing heart and tingling, or dizziness and a sense of dread, that fades within minutes. It uses the same body response, just at lower intensity.
Why do panic attack symptoms feel different every time?
The fight-or-flight response involves many body systems, and which sensations you notice most depends on your breathing, posture, what you are focused on, and your surroundings. Varied symptoms are common and do not mean something new is wrong.
Can panic attack symptoms last for days?
A single panic attack does not last days. But after a run of attacks, some people feel on edge, tired, or tense for days. That lingering state is anxiety rather than continuous panic. If symptoms persist, see a doctor to rule out other causes.
Sources
- Panic Disorder (StatPearls) — NCBI Bookshelf, U.S. National Library of Medicine
- Panic disorder — NHS
- How to tell the difference between a heart attack and panic attack — American Heart Association
- The psychophysiology of blood-injection-injury phobia (Ritz et al., 2010) — International Journal of Psychophysiology
- Panic Attacks & Panic Disorder — Cleveland Clinic
- Panic Disorder: When Fear Overwhelms — National Institute of Mental Health (NIMH)
Last reviewed . This guide is general information based on the sources above and is not a substitute for advice from a doctor or mental health professional who knows your situation.
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