In fact, CDC recommends taking fever reducing medicine only once you develop fever after a vaccine and not before vaccination for just this reason.
How do you know what I did doesn't improve immunity since all those things I mentioned do seem to lessen the severity of covid?
One thing I do know, is that no doctor anywhere has claimed what I did lessens the effectiveness of those vaccines.
In fact, CDC recommends taking fever reducing medicine only once you develop fever after a vaccine and not before vaccination for just this reason.