I just had my second Pfizer/BioNTech shot last week. No side effects whatsoever except for the sore shoulder muscle at the point of the injection.......until last night that is. I’ve had this very weird tightness in my chest and my heart seems to be racing a bit. I Googled this and am finding a report now from Israel linking the Pfizer shot to myocarditis (inflammation of the heart). Great. About 1/2 the people I know are NOT getting any so-called vaccine and I was really on the fence. Hope I didn’t make the wrong choice. Scary stuff.