An anxiety attack produces a surge of intense physical and psychological symptoms that typically peak within 10 minutes of starting. The experience can feel like a medical emergency, with chest tightness, racing heart, and a conviction that something is seriously wrong. Roughly 31% of U.S. adults will experience an anxiety disorder at some point in their lives, and acute anxiety episodes are one of the most common reasons people visit emergency rooms.
Physical Symptoms During an Attack
The physical side of an anxiety attack is often what alarms people most, because the symptoms overlap heavily with heart attacks and other emergencies. When your brain perceives a threat (real or not), your adrenal glands flood your bloodstream with adrenaline and cortisol. These stress hormones trigger your fight-or-flight response, redirecting blood flow, tensing muscles, and speeding up your heart and breathing. The result is a cascade of sensations that feel dangerous but are actually your body’s protective system misfiring.
Common physical symptoms include:
- Racing or pounding heart. Your heart rate spikes, and you may feel it hammering in your chest, throat, or neck.
- Shortness of breath. You may feel like you can’t get a full breath, or like something is pressing on your chest.
- Chest pain or tightness. Muscle tension in the chest wall often mimics the pressure of a cardiac event.
- Sweating and chills. You can alternate between feeling overheated and shivering, sometimes within the same episode.
- Trembling or shaking. Hands, legs, or your whole body may visibly shake.
- Dizziness or lightheadedness. Rapid breathing reduces carbon dioxide in your blood, which can make you feel faint.
- Nausea or stomach distress. Adrenaline diverts blood away from your digestive system, causing nausea, cramping, or the urge to use the bathroom.
- Tingling or numbness. Fingers, toes, lips, or face may tingle or go numb, a direct result of hyperventilation.
Psychological and Emotional Symptoms
The mental side of an anxiety attack can be just as distressing as the physical symptoms. Many people describe an overwhelming sense of dread or a feeling that they are about to die, even when they logically know they’re safe. This “impending doom” sensation is one of the hallmarks that separates a full anxiety attack from everyday nervousness.
Some people experience derealization, where their surroundings suddenly feel unreal, flat, or dreamlike. You might feel like you’re watching yourself from outside your own body, or that the people around you are separated from you by a glass wall. Colors may look different, distances may seem distorted, and recent events can feel like they happened a long time ago. These perceptual shifts are temporary and harmless, but they are deeply unsettling when you don’t know what’s causing them.
Other psychological symptoms include difficulty concentrating, a racing mind that jumps between worst-case scenarios, and a sudden desperate urge to escape wherever you are. Some people feel emotionally numb during the peak of an episode, while others feel an intense, unfocused fear they can’t attach to any specific cause.
How Long an Attack Lasts
Anxiety attacks begin suddenly and usually peak within 10 minutes. Most individual episodes resolve within 20 to 30 minutes. However, multiple attacks of varying intensity can roll into one another over several hours, creating the feeling of one continuous wave. Milder episodes, sometimes called limited symptom attacks, may last only 1 to 5 minutes and involve just a few symptoms rather than the full set.
The intensity matters. Occasional, mild episodes where you feel jittery and short of breath are common and don’t necessarily point to a disorder. Severe episodes that involve chest pain, derealization, and a fear of dying, especially when they recur without an obvious trigger, are more consistent with panic disorder or another anxiety condition.
The “Hangover” After an Attack
What many people don’t expect is how they feel once the attack passes. Physical exhaustion is usually the most immediate aftermath. You may feel drained and heavy, as though you could sleep for half a day. Your muscles, particularly in your neck, shoulders, and back, may ache from prolonged tension you didn’t even notice during the episode.
Brain fog is common in the hours that follow. Thinking clearly, remembering details, and making decisions all feel harder than usual. Some people feel emotionally numb or detached, watching their day unfold from a distance. Others feel irritable and on edge, hyperaware of their body and scanning for signs that another attack is starting. A lingering sense of vulnerability or embarrassment about the episode is also normal, especially if the attack happened in a public setting or around other people.
Conditions That Look Like Anxiety Attacks
Several medical conditions produce symptoms that are nearly identical to an anxiety attack. A racing heart can come from a heart rhythm problem or mitral valve prolapse. Shortness of breath overlaps with asthma, COPD, and heart failure. Chest pain is a classic symptom of acid reflux and, less commonly, coronary artery disease. Dizziness can stem from inner ear disorders, blood sugar drops, or POTS (a condition where your heart rate spikes when you stand up). Tingling and numbness occur in multiple sclerosis and after nerve injuries.
This overlap is why a first-time episode, especially one involving chest pain, should be evaluated medically. Once conditions like heart problems and thyroid disorders have been ruled out, you and your provider can focus on managing anxiety specifically. Many people go through this process and find it reassuring to know the symptoms are not structurally dangerous.
What Helps During an Episode
The core strategy during an anxiety attack is grounding yourself in the present moment, which interrupts the feedback loop between your anxious thoughts and your body’s stress response. Controlled breathing is one of the most effective tools. Box breathing (inhale for 4 counts, hold for 4, exhale for 4, hold for 4) slows your heart rate and raises your carbon dioxide levels back to normal, which reduces tingling and dizziness. Focusing on the physical sensation of air moving in and out of your nostrils gives your brain something concrete to process instead of cycling through fear.
Physical grounding techniques also help. Press your feet flat against the floor. Hold something cold, like ice or a chilled water bottle. Name five things you can see, four you can hear, three you can touch, two you can smell, and one you can taste. These exercises work because they force your attention out of your head and into your immediate sensory environment, signaling to your nervous system that there is no actual physical threat.
The most important thing to understand is that an anxiety attack, no matter how terrifying, is time-limited. Your body’s stress hormones are designed to shut themselves off through a built-in feedback loop: once cortisol reaches a certain level, your brain signals to stop producing it. The wave will crest and pass. Knowing this won’t make the symptoms pleasant, but it can reduce the secondary panic that comes from believing the episode will never end.