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 can also be felt in the neck, throat, or chest. It’s also possible that your heart rhythm can change during the palpitations.

Most heart palpitations are harmless and resolve on their own without treatment. But in rare cases, heart palpitations can indicate a serious condition.