I have experienced heart palpitations since I was a teenager. Different doctors have given me different reasons. It can be a heart valve problem. That was my first diagnosis from a cardiologist in 1981. He treated it with medication. 26 years ago we moved, and the new cardiologist changed the medication and said it was an electrical problem, not a plumbing problem. It has taken many months to get the right balance between medications so that I am now symptom-free most of the time.