How are you getting on now? Is it arrythmia or something else that's causing trouble now?
In a way, it's hard for us Europeans to visualise the problem created by the lack of a public health service in the US on things like this. Compensation schemes here can be sluggish to pay out but at least you aren't clocking up medical bills as well while you're waiting.
I know there's a government compensation in the US as well, but I've no idea how quick, generous or inclusive it is.
In terms of the raw averages, we know that vaccines are safer than Covid - in all approved age groups. But certainly by the time you get to people talking about fourth booster doses in healthy under 30s, the numbers aren't nearly so clear cut.
At any rate, there's still a lot of monitoring and research underway, so hopefully we'll know more before any new booster campaign starts in the autumn.
Good luck getting your own health issues sorted.