Covid aside, AFIB ain’t no joke. Hopefully they are seeing a cardiologist once in a while since those episodes. I had it and kind of ignored it, didn’t really know what it was till I had a full blown stroke at work. Even after the stroke it took a while to figure out it was afib that caused it. My family Doc ( best doc I’ve ever had) figured it out. I was lucky. Left me with a numb left side and problems with balance and a sort of vertigo thing. No visible effects, no paralysis, no speech issues.
Had ablation surgery a couple years ago that took care of it so far. Blood thinners for life though
Just one short episode of AFIB can potentially cause blood to pool and clot in your heart and the clot travel to your brain.