Quick answer

What could palpitations mean?

Palpitations are the sensation of your heart beating hard, fast, or irregularly — sometimes described as fluttering or pounding. They are often harmless and linked to stress, caffeine or exercise. See a GP if palpitations happen often, last a long time, or come with chest pain, breathlessness or fainting.

Palpitations are very common

Palpitations are when you become aware of your heartbeat — it may feel fast, slow, pounding, fluttering, or as though it skips a beat. Almost everyone experiences them at some point. They are often harmless, especially when linked to a clear trigger such as stress, caffeine, or exercise. But because they can occasionally indicate a heart rhythm problem, it is worth knowing when to get checked.

What palpitations feel like

People describe palpitations differently:

  • pounding or thumping in the chest
  • racing heartbeat
  • fluttering or “flip-flopping”
  • skipped or extra beats
  • awareness of heartbeat in the throat or neck

They may last seconds or minutes. Some people notice them lying in bed at night when it is quiet.

Common harmless causes

Lifestyle triggers:

  • caffeine — coffee, tea, energy drinks, chocolate
  • alcohol and nicotine
  • dehydration
  • lack of sleep
  • strenuous exercise — heart rate rises normally during activity

Emotional:

  • Anxiety and stress — adrenaline increases heart rate
  • panic attacks — sudden racing heart with breathlessness and fear

Physical:

  • hormonal changes — pregnancy, menopause, thyroid problems
  • fever and illness
  • anaemia — low iron reduces oxygen-carrying capacity, heart works harder

Medicines:

  • decongestants (cold remedies)
  • asthma inhalers (salbutamol)
  • some antidepressants

When palpitations may need treatment

Some heart rhythm problems cause palpitations and need medical management:

Atrial fibrillation (AF) — irregular, often rapid heartbeat. More common over 65. Increases stroke risk and usually needs treatment to control rate and reduce clot risk.

Supraventricular tachycardia (SVT) — sudden episodes of very fast regular heartbeat. Can start and stop abruptly. Sometimes needs specialist treatment.

Other arrhythmias — a GP or cardiologist identifies these with ECG monitoring.

What you can try at home

If palpitations are occasional and you feel well otherwise:

  • reduce caffeine and alcohol
  • manage stress — breathing exercises, regular sleep
  • stay hydrated
  • note when palpitations occur — triggers, duration, associated symptoms — this helps your GP

The vagal manoeuvre (bearing down as if on the toilet, or splashing cold water on the face) can sometimes slow a fast heartbeat, but only try this if you have been shown how and do not have serious symptoms.

When to see a GP

Book a GP appointment if:

  • palpitations are frequent or increasing
  • episodes last more than a few minutes
  • you feel dizzy, faint, or breathless with palpitations
  • you have a known heart condition
  • your pulse feels consistently irregular

A GP can check your pulse, arrange an ECG, blood tests (thyroid, anaemia), and a heart monitor if needed.

When to seek emergency help

Call 999 if palpitations come with:

  • chest pain or pressure
  • severe breathlessness
  • fainting or near-fainting
  • lasting more than a few minutes with feeling very unwell

These could indicate a heart attack or dangerous arrhythmia.

Palpitations and anxiety

Anxiety and palpitations often feed each other — a racing heart causes worry, which releases more adrenaline. Treating anxiety (talking therapy, lifestyle changes, sometimes medication) often reduces palpitations. A GP can assess whether anxiety, a heart rhythm issue, or both are contributing.

Living with occasional palpitations

If investigations are normal and triggers are identified, many people manage palpitations by avoiding triggers and staying generally healthy — regular exercise, balanced diet, not smoking, and moderating caffeine. Knowing your heart is structurally normal provides reassurance for many people.

Common questions

What do palpitations feel like?
Awareness of your heartbeat — pounding, racing, fluttering, or skipping beats. You may feel them in your chest, throat, or neck. They can last seconds to minutes, or occasionally longer.
Are palpitations dangerous?
Often not. Many healthy people notice palpitations during stress, after caffeine, or during exercise. However, persistent or symptomatic palpitations should be checked — some heart rhythm problems need treatment.
What triggers palpitations?
Stress and anxiety, caffeine (coffee, energy drinks), alcohol, nicotine, dehydration, lack of sleep, vigorous exercise, hormonal changes (including pregnancy and menopause), and some medicines including decongestants and asthma inhalers.
What is atrial fibrillation?
AF is an irregular, often fast heartbeat that becomes more common over 65. It increases stroke risk and usually needs anticoagulation and rate control. Palpitations with an irregular pulse should be assessed.
What tests will a GP do for palpitations?
Usually an ECG (heart tracing), blood tests including thyroid function and anaemia checks, and sometimes a longer heart monitor worn for 24 hours or more to capture intermittent episodes.

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