Cramping after urinating

I don’t have a UTI.

Every time I hold my pee (meaning i don’t go AS SOON as I feel the urge) I get this really bad cramping pain (period cramping) in my lower abdomen.

It only last 5 or so minutes... it’s the same cramping I experience after intercourse.

I read it’s normal bcuz your uterus is contracting after emptying your bladder.

Anyone else??