I never had covid but I was bed ridden sat night and yesterday from the J&J shot so I’m not sure the theory that vaccine side effects hit covid patients harder. I think there is enough variance where one can mistakenly categorize themselves in. My wife was vaccinated same time as me but she had her first shot of Pfizer and felt did not feel any side effects. So is it the person, the vaccine, the batch, previous infection of covid or not, etc...or a combination of it all?