How do palpitations affect you ?

Hard to say.: Physiologically there is no real affect of a single abnormal beat of the heart. Psychologically everyone is different. Some patients live in constant fear of another abnormal beat ( which they may feel could lead to some horrific death) while others are completely unaware that they have 30 abnormal beats every minute. Truly amazing variation in awareness.

Depends on cause: Palpitations could be normal responses or abnormal from pathological condns. It is unpleasant awareness of your own hear beats. Pregnancy, pain, fever, fright fear, anxiety are physiological condns. But extreme anxiety -panic attacks, medication side effect with palp., cardiac conditions, anemia, throid excess, low bp, blood loss with shock, dehydration -extreme, are common conditions with fast hear rate.