Period masterbation 😑

Bleigh
On my period, it is my worst 😓. Especially when I masterbate, cause I'm really sexual on my period, it sucks! Whenever I masturbate on my period, which is pretty much in the shower (because you know blood and what not) but yea, after I'm done (and this happens every time) I feel like someone power punched me in the stomach! (It lasts for an hour or more, and medicine doesn't seem to help) Why does it do that?! I'm extremely sexual on my period, It's not my fault. And no guy will ever consider going down on a woman because of that. So what am I to do?? Help!