Health A-Z

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Atrial fibrillation often doesn't cause any symptoms. When symptoms occur, they can include:

  • Palpitations (awareness of a rapid heartbeat)

  • Fainting

  • Dizziness

  • Weakness

  • Shortness of breath

  • Chest pain

Some people with atrial fibrillation have periods of normal heartbeats: the atrial fibrillation comes and goes. In many others, the atrial fibrillation becomes a constant condition, one that remains for the rest of their lives.

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