What are palpitations?

Awareness of heartbe: This may be the awareness of your normal heart beat that may be faster or more forceful that normal. More commonly this is associated with an awareness of an irregular heart beat such as extra heart beats or an abnormal tachycardia.

Investigate.: Palpitations require investigation. When are they occurring? Does it feel like regular or erratic beating of the heart? Any symptoms with the palpitations? Are they constant, or is something triggering them. Generally you'd need some blood testing and specific testing for the heart to elucidate a cause.