Heart Palpitations: When a Racing or Skipping Heart Is (and Isn't) a Worry

Feeling your heart race, pound, flutter, or skip a beat? Palpitations are common and often harmless — but some need a doctor. Learn the triggers, what helps, and the warning signs.

You are sitting quietly and suddenly you feel it — your heart pounding, racing, fluttering, or seeming to skip a beat. Palpitations are that unsettling awareness of your own heartbeat, and they can be genuinely frightening. The reassuring news is that most palpitations are harmless and pass quickly, often triggered by everyday things. But some patterns do need a doctor. Here is how to understand what your heart is doing and when it is worth checking.

Get emergency help if palpitations come with
  • Chest pain or pressure
  • Severe breathlessness
  • Fainting, or feeling like you are about to pass out
  • Palpitations that are severe and do not stop

That combination can signal a heart problem that needs immediate care — do not wait it out.

What Palpitations Are

A palpitation is simply becoming aware of your heartbeat when you normally would not — feeling it race, pound, flutter, or seem to skip. Often it reflects the heart briefly beating faster or with an extra beat, which happens to everyone from time to time. The heart is doing something noticeable, but noticeable does not automatically mean dangerous — context is everything, which is why the triggers and the accompanying symptoms matter so much.

Common (Usually Harmless) Triggers

  • Caffeine — coffee, tea, energy drinks, cola
  • Stress, anxiety, or panic — a very common cause
  • Exercise or physical exertion (normal)
  • Not enough sleep, or being run-down
  • Nicotine and alcohol
  • Fever, dehydration, or hormonal changes (periods, pregnancy, menopause)
  • Some medicines and cold/cough remedies
Palpitations that clearly follow coffee, stress, or a poor night's sleep, and settle on their own, are usually the harmless kind — especially in an otherwise healthy person.

Causes That Need a Doctor

Sometimes palpitations point to something worth treating — such as an irregular heart rhythm, a thyroid problem (an over-active thyroid can cause a racing heart), or anaemia. These are exactly the reasons a doctor checks palpitations that are frequent, prolonged, or come with other symptoms, rather than assuming every fluttering heart is just stress.

What Can Help

  • Cut back on caffeine, nicotine, and alcohol and see if they ease
  • Prioritise sleep and manage stress — slow breathing during an episode genuinely helps
  • Stay hydrated
  • Note when palpitations happen, how long they last, and how your pulse feels (steady or irregular) — very useful for a doctor
A tip for your doctor visit If you can, check whether your pulse feels regular or irregular during an episode, and roughly how fast. An irregular, fast pulse is something a doctor will especially want to know about.

When to See a Doctor

Palpitations with chest pain, severe breathlessness, or fainting are an emergency — get help immediately. Short of that, see a doctor if palpitations are frequent, last a long time, feel irregular, are getting worse, or come with dizziness or breathlessness — or if you have a known heart condition. A doctor or cardiologist can check your heart rhythm (often with a simple ECG), test your thyroid and blood count, and reassure or treat as needed. An online consultation is a sensible first step to describe your pattern and decide what to check.

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