Palpitations

[Sarah]

An expression of extreme anxiety.

[Britney]

Palpitations are the awareness of heartbeats. The sensation may feel like pounding, fluttering, racing, or skipping beats. Other symptoms—for example, chest discomfort or shortness of breath—may be present depending on the cause of the palpitations.
Palpitations are common. Some people find them unpleasant and alarming, but they rarely indicate a life-threatening heart disorder. Many people without heart disease also have palpitations.