There is some combination of psychological and psychological effects. We know from VAERS that the jab can impact mental health for some people.

I don't notice it across the board, but on occasion I see it. I was recently watching a gamer channel and looked back at his work at or before covid. Back then seemed a lot more normal and less spergy. Now he has some weird emotional outburts when he dies in a game that just don't look right, especially for a grown man.

I know such people tend to be man-children to begin with, but the difference was significant.