A heart palpitation is the sensation that your heart has skipped a beat or added an extra beat. It may feel like your heart is racing, pounding, or fluttering. You may become overly aware of your heartbeat. This sensation is sometimes also felt in the neck, throat, or chest. While you are having palpitations, your heart rhythm may or may not be abnormal.
Heart palpitations can be caused by a variety of factors, including caffeine, exercise, smoking, or stress.
Although they can be quite unsettling, most heart palpitations are harmless and resolve on their own without treatment.
Rarely, heart palpitations are a sign of a serious condition. Seek medical attention immediately if your heart palpitations are accompanied by other symptoms such as chest pain, fainting, difficulty breathing, or if you have previously diagnosed heart problems.