An anxiety attack feels like your body has hit an alarm button you didn’t press. Your heart races, your breathing gets shallow, you might feel dizzy or nauseous, and a wave of dread takes over, often without a clear reason. These episodes typically peak within 10 minutes and fade within 20 to 30 minutes, though they can feel much longer when you’re in the middle of one. Here’s how to recognize what’s happening in your body and what to do about it.
The Physical Symptoms That Define an Attack
Clinically, a panic attack is identified when at least 4 of 13 specific symptoms hit at once. These aren’t vague feelings. They’re concrete, physical experiences that can be startling if you don’t know what’s causing them:
- Heart pounding or racing
- Shortness of breath or a smothering sensation
- Chest pain or tightness
- Dizziness, lightheadedness, or feeling faint
- Trembling or shaking
- Sweating
- Nausea or stomach distress
- Numbness or tingling in your hands, feet, or face
- Chills or hot flashes
- A choking sensation
You don’t need all of these to be having an attack. Four happening simultaneously is enough. Many people experience six or seven at once, which is why the experience feels so overwhelming. If you have fewer than four, it’s sometimes called a limited symptom attack, which can last just one to five minutes and feel less intense but still frightening.
The Mental Symptoms You Might Not Expect
The physical feelings get most of the attention, but three of the 13 recognized symptoms are entirely psychological, and they can be the most disorienting part of the experience.
The first is a sudden, gripping fear of dying. Your body is sending so many distress signals that your brain interprets the situation as life-threatening, even when it isn’t. The second is a fear of losing control or “going crazy,” a sense that you’re about to do something erratic or that your mind is breaking. The third, and often the strangest, is depersonalization or derealization: feeling detached from yourself or from the world around you. People describe this as watching themselves from outside their own body, feeling like they’re in a movie, or sensing that their surroundings look flat, blurry, or unreal. Some feel emotionally numb, as if separated from everything by a glass wall.
These sensations can last throughout the attack and sometimes linger briefly afterward. They’re a normal part of the body’s extreme stress response, not a sign of a psychotic episode or a permanent change in your brain.
Why Your Body Does This
Every symptom of an anxiety attack traces back to one system: your fight-or-flight response. When your brain’s emotional processing center perceives danger, real or imagined, it sends a distress signal that triggers a flood of adrenaline into your bloodstream. Your heart beats faster to push blood toward your muscles. Your breathing speeds up and your airways widen to pull in more oxygen. Your blood pressure rises. Your senses sharpen.
If the perceived threat doesn’t resolve quickly, a second wave kicks in. Your adrenal glands release cortisol, which keeps your body in that revved-up, high-alert state. This is why an attack can feel like it’s building in layers rather than hitting all at once. It’s also why your stomach rebels during an episode. Roughly 28% of people with recurring panic attacks report bloating and nausea, and about 11% experience vomiting. Your body is diverting resources away from digestion and toward survival.
The key thing to understand: nothing is malfunctioning. Your body is doing exactly what it’s designed to do in an emergency. The problem is that the alarm is firing without an actual threat.
Anxiety Attack vs. Panic Attack
“Anxiety attack” isn’t a formal clinical term the way “panic attack” is, but most people use them interchangeably. The practical distinction comes down to onset and buildup. Anxiety tends to build gradually in response to a specific stressor, like a looming deadline, a conflict, or a health worry. A panic attack strikes suddenly and often without any obvious trigger. You could be sitting on the couch watching TV.
Panic attacks are also more intense. They peak fast, usually within 10 minutes, and create that acute “something is terribly wrong” feeling. Anxiety can simmer for hours or days at a lower level, producing many of the same physical symptoms (muscle tension, racing heart, nausea) but without the sudden, crashing wave. Both are real, both are unpleasant, and both involve the same underlying stress response. The distinction matters mostly for treatment, since recurring panic attacks that come out of nowhere point toward panic disorder specifically.
How to Tell It’s Not a Heart Attack
This is one of the most common fears during a first anxiety attack, and it’s reasonable. Chest pain, shortness of breath, dizziness, sweating, and nausea appear on both lists. But there are reliable differences.
Panic attacks start suddenly and peak within minutes. Heart attack symptoms usually begin gradually and intensify over time. Panic attack chest pain tends to stay in one spot (often the center of the chest) and feels sharp or stabbing. Heart attack pain is more commonly described as pressure or squeezing, and it often radiates to the jaw, arm, back, or neck. The most telling difference is duration: panic symptoms typically fade within 20 to 30 minutes, while heart attack symptoms persist and worsen without medical treatment.
A practical test from the University of Rochester Medical Center: if you’re someone who has experienced anxiety before, sit down and try slow, deep breathing or a calming technique. If your symptoms ease, it’s more likely a panic attack. If chest pain persists or gets worse despite calming efforts, get emergency care immediately. Pain that spreads to your jaw or arm is a red flag for a cardiac event regardless of your anxiety history.
What to Do During an Attack
The single most effective thing you can do in the moment is slow your breathing. Fast, shallow breathing during an attack creates a feedback loop: rapid breathing lowers your carbon dioxide levels, which causes more tingling, dizziness, and chest tightness, which makes you breathe even faster. Breaking this cycle by deliberately taking slow, deep breaths interrupts the escalation.
Once you’ve started slowing your breath, a grounding technique can pull your attention out of the spiral. The 5-4-3-2-1 method works by anchoring you to your physical surroundings through each sense:
- 5: Name five things you can see around you.
- 4: Notice four things you can physically touch (the texture of your shirt, the floor under your feet).
- 3: Listen for three sounds you can hear.
- 2: Identify two things you can smell.
- 1: Notice one thing you can taste.
This works because it forces your brain to process concrete sensory information, which competes with the abstract fear signals driving the attack. It won’t stop the adrenaline already in your bloodstream, but it can prevent the psychological escalation that makes attacks feel longer and more intense.
Remind yourself of the timeline. The worst of it will peak within 10 minutes and pass within 20 to 30. Sometimes multiple smaller waves follow, which can feel like one long attack, but each individual wave follows the same pattern of cresting and fading.
Signs That Attacks Are Becoming a Pattern
A single anxiety attack, while frightening, doesn’t necessarily signal a disorder. Many people have one or two in their lifetime during periods of extreme stress and never have another. The concern shifts when attacks start recurring, when you begin avoiding places or situations because you’re afraid of having one, or when the worry about the next attack becomes a constant background presence in your life.
Standardized anxiety screening tools score severity on a scale from minimal to severe. A score reflecting moderate anxiety or above, where symptoms like restlessness, difficulty controlling worry, and physical tension are present more days than not, suggests the issue has moved beyond isolated episodes into something that benefits from structured treatment. Cognitive behavioral therapy is the most effective approach for recurring panic attacks, and it works by retraining the way your brain interprets the physical sensations so they stop triggering the cascade of fear.