Ok what to do?

My hated dad had a burning heart attack just last year.
He had to undergo a surgery to take care of the problem. He recovered for a little bit following that, but later started to feel dizzy and fatigued. Human heart functions all the time with constant working, with uniform beating. Any deviation in its functioning leads to exhaustion which has to be referred to an expert for immediate medical treatment. The doctor checked him over and decided he had a case of Atrial Fibrillation. This was a serious matter whether or not it was caused by the surgery. I just couldn't deal with any more of his problems. I knew I was going to have to hire a nurse to take care of him. irregular heart beat was something new to me.