Hi David, I'm Nancy (shortshot80) I did not know I was out of rhythm, nor I did not know I ever had AFIB as I have a pacemaker and have had for over 10 years, I'm on my 2nd pacemaker and have had it for over l year. I also have two kinds of lung cancer. I have mesothelioma on my left side and plain small cell cancer on my right side. I have had chemo, immune therapy, and finally radieation on my right side. Nothing can be done on the Meso side, (so far I don't have any pain) Radiation twce on my right side and that is because I was coughing up blood. That is all I can have. I found out that I had this in 2016. I had surgery and the doc put a 4 foot plastic tube in my lung and let it drain for for days, then told me I had "meso" . Nothing can be done for this. Next month I will be 87 years old. Yea!