Clearly, not everyone had a bad reaction to the vaccine. Virulent forms of cancer hit two people close to me shortly after the Covid days - one was unvaccinated, the other was vaxxed and boosted, as far as I know. Certainly, unvaccinated people over the years have gotten very sick with various ailments, so we can't blame everything on the Covid shot.
Do unvaccinated people ever get the type of autoimmune disease Kelly got? Having had no medical training, I surely don't know.