Dr Sanjay Gupta - York Consultant Cardiologist puts in plain words with regards to Palpitations

Heart palpitations are pulses that abruptly become more noticeable.
Palpitations might appear alarming, but in most cases they areharmless and are not a sign of an issue together with your heart.

https://brainnationtipsss.wordpress.com/2015/07/30/yorkshire-top-doctor-cardiac-professional-explains-regarding-heart-palpitations/