Just from my personal experience I think I've sworn off shots. Honestly don't know if there is any connection but 6-7 years ago I got the flu shot. About a week later I came down with the worst case of flu I've ever had. Haven't taken the shot since and haven't had the flu either. Also, I've had both of the original Covid shots plus the booster. About 4 months after the booster shot I was diagnosed with Covid. I seem to be immune to the shots.
