Great dialog on A-Fib. I was diagnosed about 5 yrs back with Afib. At first it didn't seem to bother me too much since I was only irregular 10% of the time. But gradually my irregularity has built up to 50-80% or so. I think what kills me is the beta blockers the doctor has me on. It seems like I have no endurance any more. After about 2 hours riding I am totally sapped. Age could be playing a factor as well as I am mid 50s so I just accept that I can't ride as fast and as long as I used to. 40-50 miles at 15mph will just have to do. At least I am exercising and getting outdoors.
I did recently have an ablation so hopefully I will notice a difference when the heart fully cures.