If the vaccine has caused you heart damage, that updates the Bayesian priors on whether you would have survived contracting the disease itself.
It is entirely possible the vaccine warded off a virus that would have killed your heart if your body had to respond directly to the unattenuated disease. I don't think we have enough information to be able to tell (how do you do an analysis of that kind when you don't even know precisely why COVID or the vaccine can cause heart damage?).
If the vaccine has caused you heart damage, that updates the Bayesian priors on whether you would have survived contracting the disease itself.
It is entirely possible the vaccine warded off a virus that would have killed your heart if your body had to respond directly to the unattenuated disease. I don't think we have enough information to be able to tell (how do you do an analysis of that kind when you don't even know precisely why COVID or the vaccine can cause heart damage?).