I'm starting to wonder if my own case including bruising and blood problems might have been because of Covid/Long Covid, whereas I was suspecting the vaccine. The thing is that I didn't have any Covid flu-like symptoms, which would have alerted me, but that could be explained by having had the 2 Covid vaccines and 2 boosters. Bruising is a known symptom of Covid but I haven't seen much discussion of the implications including misshapen red blood cells, and low platelet and WBC counts.