The first thing that came to my mind is magnesium, and deficiency. Do you take magnesium...many do not. A friend just came out of hospital and now deals with afib and my thinking is that she wasn't taking enough mag if she took any. I've been taking higher doses for many years. And there is a long post on the vitamin section here on magnesium.

It's vital for all body functions and finding more and more how overlooked it is. Do research on magnesium and your issues, if you care to.