A Flutter

I am new to this group and very recently new to A Flutter. I have had 4 ablutions for Afib. This was after numerous medications and cardioverts failed. Following the last ablation (7 years now) my heart rate was extremely low, we did the linc implantable monitor and 2 weeks later it found that my heart stopped for 6 seconds, I was asleep at the time and wasn’t aware, that brought the decision on a pacemaker to help with the low rate. Just 2 weeks ago I was at my GP for a regular physical, I had not been feeling well for a couple of weeks, exhaustion and sleepiness, and the Dr immediately found that I was in A Flutter. I Ended up in the ER, and 5 days later the A Flutter ablation. It’s been a week now and I still feel extremely exhausted and want to sleep constantly. Has anyone else experienced this lack of energy after their ablations could this be a side effect?