Panic Attack Symptoms — How to Recognize an Attack

Panic attack symptoms — how to recognize an attack

Panic attack symptoms can be so strong that many head to the emergency room after their first attack thinking they’re having a heart attack. This is a completely understandable reaction, since the physical symptoms of a panic attack feel truly dangerous, even though they aren’t.

Recognizing the symptoms is important for two reasons. First, it helps distinguish a panic attack from other conditions, such as heart problems. Second — and perhaps even more important — when you understand what the symptoms are and what causes them, they lose some of their frighteningness. Knowledge becomes a tool that helps you cope with attacks better.

Physical symptoms

The physical symptoms of a panic attack are often the first ones you notice. They result from the activation of the body’s sympathetic nervous system, that is, the fight-or-flight reaction. Each symptom has a biological explanation behind it.

Heart palpitations and rising heart rate

The heart starts pounding strongly and quickly. The feeling can be so strong that the heartbeat is felt in the chest, throat, and even ears. This is due to the effect of adrenaline — the body prepares to act in a threatening situation and pumps blood to the muscles more efficiently.

Heart palpitations are one of the most frightening symptoms because many associate them with heart disease. During a panic attack the heart rate can rise to 120–150 beats per minute, which is completely safe for the body.

Chest pain and a pressing sensation

Chest pain is another symptom that causes great worry. In a panic attack, chest pain usually results from tension in the chest muscles and the effects of hyperventilation. The pain is typically sharp or stabbing, and it can move from place to place.

In cardiac chest pain, on the other hand, the pain is usually pressing, radiates to the left arm, and is linked to physical exertion. If you aren’t sure, always seek medical help — it’s better to have it checked than to ignore it.

Shortness of breath and feeling of choking

Many experience during a panic attack the feeling that they aren’t getting enough air or that they’re choking. Paradoxically, the problem is usually the opposite — hyperventilation, that is, breathing too quickly, leads to a drop in blood carbon dioxide levels, which causes the feeling of shortness of breath.

The body actually gets more oxygen than it needs. That’s why slow, regular breathing is one of the most effective ways to ease an attack.

Dizziness and feeling of fainting

Dizziness results from hyperventilation and changes in blood pressure. The drop in blood carbon dioxide level causes the brain’s blood vessels to constrict, which feels like dizziness. Many fear they will faint, but during a panic attack fainting is very rare because blood pressure usually rises rather than falls.

Trembling and shaking

Trembling of the body is a direct result of the combined effect of adrenaline and muscle tension. The body is primed to act, but because no physical action takes place, the energy releases as trembling. The trembling can be subtle or strong, and it can continue for a moment after the attack.

Sweating

Sweating is part of the body’s alarm reaction. The body prepares for physical performance and tries to cool itself in advance. Sweating can be general or focused on the armpits, hands, and forehead.

Nausea and stomach pain

Digestive symptoms result from the fight-or-flight reaction directing blood away from the gut and into the muscles. The stomach can feel sore, nauseated, or as if it’s in a knot. Some also experience diarrhea.

Numbness and tingling

Numbness and tingling in the hands, feet, or face is a common and frightening symptom. It results from changes in blood calcium balance caused by hyperventilation. When the carbon dioxide level drops, blood pH rises, which affects nerve function and causes tingling symptoms.

Hot and cold waves

Sudden waves of heat or cold are linked to changes in circulation. As blood is directed to large muscles, skin circulation changes, which causes temperature sensations. These symptoms are harmless but emotionally unpleasant.

Psychological symptoms

Alongside the physical symptoms, a panic attack involves psychological symptoms that can be just as frightening.

Strong fear and terror

The definition of a panic attack includes strong fear or terror. This fear can be directed at something concrete (I’m dying, I lost control, I’ll go crazy) or it can be an undefined but overwhelming feeling of terror.

Fear of death

Many feel genuine fear of death during a panic attack. The intensity of the physical symptoms makes body and mind believe that something is seriously wrong. This is one reason why the first attack often leads to the emergency room.

Derealization and depersonalization

Derealization means a feeling that the surroundings feel unreal, dreamlike, or strange. Depersonalization means a feeling of being detached from yourself — as if watching yourself from outside.

These experiences can be frightening, but they are the brain’s protective mechanism against strong stress. They pass with the attack.

Fear of losing control

The feeling of losing control — starting to scream, doing something embarrassing, or “going crazy” — is a common but unfounded fear. During a panic attack a person may feel they’re losing control, but in reality their behavior remains under control.

Mild panic attack symptoms — limited attack

Not all panic attacks are full-blown. In a mild or limited panic attack there are fewer than four symptoms (in a full attack at least four). Symptoms of a mild attack can include, for example:

• Mild heart palpitations
• Sweaty hands
• Brief shortness of breath
• Momentary feelings of anxiety without full panic

Limited attacks are more common than full-blown ones, and many experience them without recognizing them as panic attacks. They can be a sign that stress levels have risen, and they’re worth paying attention to. Also see stress symptoms and anxiety symptoms — many symptoms overlap.

Nighttime panic attacks

About one-third of those with panic disorder experience panic attacks during sleep. A nighttime panic attack wakes you from sleep, and the first moments are especially frightening because in the waking phase you don’t understand what’s happening.

Features of a nighttime attack

• You wake suddenly to strong anxiety or fear
• Physical symptoms (heart palpitations, sweating, trembling) are immediately strong
• The attack lasts as long as during the day — typically 5–20 minutes
• Falling asleep again can be difficult

Why do nighttime attacks happen?

The exact mechanism of nighttime attacks isn’t fully understood. Research suggests they’re linked to physiological changes during sleep, such as variations in heart rate or breathing, which the body interprets as threatening. Stress, accumulated anxiety, and insomnia increase the risk of nighttime attacks.

It’s important to know that nighttime panic attacks aren’t sleep disorders (such as nightmares or night terrors), even though they may resemble them. A panic attack happens during light sleep or the waking phase, not during deep REM sleep.

Intensity and variation of symptoms

Panic attack symptoms vary by person and from attack to attack. The same person can experience very different attacks at different times. For some, physical symptoms predominate; for others, psychological. The intensity of symptoms can also vary:

• Mild attacks: a few symptoms, short duration, manageable
• Moderate attacks: several symptoms, clearly unpleasant, but functional capacity partly retained
• Severe attacks: many strong symptoms simultaneously, fear of death or losing control, complete inability to function during the attack

The intensity of symptoms doesn’t tell the severity of the disorder — even mild attacks can significantly limit life if they cause constant fear and avoidance behavior.

How to distinguish a panic attack from other conditions?

Because panic attack symptoms resemble many physical illnesses, it’s important to rule out other causes especially with the first attacks.

Conditions to distinguish a panic attack from

• Heart problems: Chest pain, shortness of breath, and heart palpitations can be linked to heart disease. ECG and laboratory tests help in distinguishing.
• Hyperthyroidism: Causes heart palpitations, sweating, trembling, and anxiety.
• Low blood sugar: Trembling, sweating, and dizziness can resemble a panic attack.
• Asthma: Shortness of breath can be confused with a panic attack.

According to clinical care guidelines, in diagnosing panic disorder it’s important to rule out somatic causes especially when symptoms first begin.

What to do when you recognize the symptoms?

Recognizing the symptoms is itself a management method. When you know it’s a panic attack and not a heart attack, the fear eases and the attack often passes more quickly.

You’ll find a thorough guide to practical management methods — such as breathing exercises, grounding techniques, and cognitive reframing — in our article on panic attack first aid and management.

If attacks recur, it’s also worth reading how individual attacks develop into panic disorder and what can be done about it.

If you want to talk about your symptoms with someone right away, the Aichologist app offers support and helps you organize your experiences.