A friend said to me “It sounds as if your heart has rebooted?”; Is this possible?

[LindyMc]

Here is the background. I had Covid from my partner following a visit of his to the hospital and 48 hours after it went negative, I had a fast pulse with an irregular heartbeat (only traceable using taking a wrist pulse, no palpitations, no breathlessness). Was put on apixaban and bisoprolol both of which were wound down, as one GP said you are an over reactor to most things! But generally felt very flat, exhausted, brain fog and unable to keep up the full-time caring roll successfully. AF tended to come in 10 day to 3 week stints and then recede for a similar time scale. Then had a good patch from August to November while I was trying to reduce the betablocker to achieve a pill in the pocket. Then the emotional shit hit the fan (partner deteriorating until the level of anaemia was discovered) and things were very bad with AF and seriously bad sinus rhythm with supraventricular episodes, regularly getting 10 ectopics in 30 seconds with a Kardia reading.

Mid-February I had another dose of Covid and despite feeling moderately physically crap the joyless feeling and difficulty coping lifted and suddenly all was possible and although the AF didn’t stop immediately, it quickly lessened. Since early April apart from a couple of very stressful days, e.g a funeral, has not reappeared. For the last 6 weeks I have been in normal sinus rhythm with no ectopics and no betablockers. Hence the comment above. So, anyone any thoughts?