Not uncommon at at.
Just about every person on planet earth experiences this to some degree after orgasm.
Some simply stop being interested in sex, some feel a little down, some get weepy, some get angry, etc.

The more extremely negative reactions to orgasm are rare, but they do happen.

I for instance have a *violently* negative reaction to orgasm. Been that way all my life. No negative sexual experience, no abuse, no restricted household upbringing, religious influence, etc. This is just the way I've always been wired.

It sucks, but it's the card I drew.