The connection between these shots and adverse reactions to the heart is well established, my friend. Your line about science assuming nothing may have had its place within the first two weeks of the vaccine roll-out but not after this much time.
“Connection”, perhaps. Causation, in particular, unimpeachable direct causation, certainly NOT definitively established.
Oh, and btw, it’s impolite and presumptuous to refer to someone as “friend” when posting a reply to a complete stranger.