Not me, but my roommate/best friend. After her boyfriends came to visit her (boys weren’t allowed to sleep over) she always sat next to me in the living room and put a hot cherry pit pillow on her stomach.
She kept doing that for weeks and I once asked her why she did that and she explained to me she was anorgasmic. When she had sex with her boyfriend she couldn’t have an orgasm, and this would give her what she called “blue labia”, which apparently is pain you get from being excited too long without sexual relief.
So yeah, it’s a thing. You’re never too old to learn 🙂