[inb4_cancelled]

I'd like to know as well. Never had any covid AFAIK, yet I'm currently on my second week of feeling tired and on my fourth day of experiencing heart palpitations maybe once every hour (feels like my heart skipped a beat and the next one is a bit stronger). I've never had this before and my antigen test yesterday was negative.

[AnimalMuppet]

I have those. At least in my case, it's a premature ventricular contraction. What happens is that the nerve fires too early, and the heart muscle says: "What? LOL, no. I'm still on my coffee break." But blood keeps arriving at the heart, so the next beat is stronger because it has more blood to move. They can get strong enough to hurt a bit.

In my case, it seemed to be caused by Claritin. When I stopped taking Claritin, I quit having these. Years later, just recently, I've started having them again.

Disclaimer: I am not a doctor, and this is not medical advice. Your symptoms may be something else.