I definitely had this: got the first shot and felt confident, cocksure that I would have no symptoms at all being healthy and young. Woke up during the night ~8

I definitely had this: got the first shot and felt confident, cocksure that I would have no symptoms at all being healthy and young. Woke up during the night ~8 hours after the first shot feeling a little out of breath, with strong and almost painful heartbeats. I chalked it up to being stressed, but found it strange as I had zero reasons to be stressed that particular week. I connected the dots the next day when I still had this feeling, and talked to a doctor in the family who said it was probably heart inflammation, and actually not that uncommon after the vaccine or covid infection. I'm still glad I got vaccinated, but given that heart disease is the #1 cause of death worldwide, I'm surprised the ramifications of heart inflammation aren't taken more seriously (if the heart was permanently damaged in a small way, I'd expect it to manifest many years later).