Jengeo - In my opinion, of course related to Covid and more probably vax. Which means that you may need to do more dietary restrictions than if you had not gotten the vax. I did not get the vax.

I discovered at age 21 and 7 years of afib or something similar, that it was due to being EXTREMELY sensitive to caffeine. I decreased my coffee, and found that I had the same symptoms with 1/2 cup that I had with 4 cups. Until age 75, I had no problems, but found some Haagen Daz COFFEE ice cream where I live and started eatting it and within a short time, I was having heart rhythm issues. I stopped eating and it mostly went away, and then read dehydration can cause heart problems. So, I started drinking more water, had been drinking hardly none, and viola, the problem is gone. Also, a high sugar diet not good.

If anything I have said rings a bell, and you get rid of the problem without having to take icky drugs or scary procedures, please let us know! Also, Mountain Dew has more caffeine than cola, which is also high in caffeine, chocolate, teas with caffeine, those stupid and dangerous energy drinks.