How long after the vaccine did this happen?  

But are you 100% sure it happened as a result of the vaccine?

I'm not saying it definitely did or didn't ... 

But, on an average day, lets say 10,000 people in the US will have a heart attack ...

If one of those 10,000 people had gottent the vaccine a week before the heart attack (s)he may blame it on the vaccine, even though the rate of heart attacks did not go up, even in the group who were vaccinated.

Also, the vaccine has lowered the incidence of severe covid and hospitalization by 90% - But yes, there are some adverse reactions and unintended consequences from it and it's quite possible you are in that group.

It's also quite possible that some people who get the vaccine are about to tip over into some other disease (cancer or other autoimmune), and this was the straw the broke the camel's back (because it does invoke a strong immune response)

So, it is very unfortunate that this happened to you and my family and I will pray for your complete recovery. I suspect that there's a very good chance you will recover, but it must be very challenging dealing with this right now.