I think “minuscule” is an understatement. I knew of 2 teenagers who were hospitalized for myocarditis - both healthy and played sports at high school. Compared to that I know of no one who has had issues with the polio, norovirus, hib, hepatitis, etc. Even the often “dreaded” mmr is ok. I’ve known of kids having sustained reactions to mmrv.

I think general aches and chills were not an issue. But myocarditis and blood clots should be looked at and not brushed under “minuscule”