Prior to the Roll Out of the "Vaccines", How Often Did You Hear Terms like "Myocarditis" & "Pericarditis"?

And prior to these "Vaccines" how often did you hear about elite athletes with heart attacks, myocarditis, pericarditis, and have you ever seen athletes clutching their chests and dropping to their knees in mid-games and collapsing?

Just curious to read the responses to these simple questions.

Do NOT comply.