HELP ME IM FREAKING OUT RN!!!

So I’m on my period about 2-3 days in and I was just in the shower having the best masturbation session ever, orgasms and all and I went to orgasm and blood came out. I didn’t freak out then but when I stood up it was flowing out like a fucking waterfall. It just kept flowing and there was heaps. I’ve put on like 3 pads just in case but it’s was so heavy.

Is that normal to happen? Someone help me out, I’ve never masturbated on my period before so I’m freaking out.