Palpitation

A palpitation is an abnormal awareness of the beating of the heart, whether it is too slow, too fast, irregular, or at its normal frequency. It can be caused by (but should not be confused with) ectopic beat, which is a more specific diagnosis. The difference between an abnormal awareness and a normal awareness is that the former interrupts other thoughts, whereas the latter is almost always caused by a concentration on the beating of one's heart... more

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  • Palpitations
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