hi david,
afib seems to manifest itself differently, from what i've read here. most folks get a strong, fast irregular heartbeat. joey's pulse rate is slow and when he goes into afib, it's not fast at all, it's just irregular.
rather than the thump-thump-thump, he (can feel it when he takes his pulse) feels it go thumpthump---thump---thumpthumpthump----thumpthump-- thump...not in rhythm (arrhythmia).
that is joey's sign that he is in afib. others here describe it also as being an arrhythmia, but their pulse is fast.
sounds like your heart is beating at a steady pace, so i don't think it's afib.
i remember that for months after joey's surgery he would wake up in sweats. we were told it was that his system was adjusting itself back to a homeostatic/balanced state. he was sweating out the anesthesia as well.
about the pain, i'm not sure, but maybe mention that to your cardio if it persists.
i know joey went through a long period where he felt that the surgery had set him back and that he was worse than before.
please try to be patient; it's only been a few months. it takes about 9 months to a year to be 100% after this surgery. try to give it time, take it slow, walk, rest and try to relax.
hope this helped a bit.
be well,
sylvia