So today I decided to masturbate using my vibrator while my roommate was at her classes. I was in the shower and started doing the deed and it was a lot harder to get it in than usual and it instantly started to hurt. My vagina is still in pain and I am wondering if anyone could tell me why this might be? I haven't had sex in about a month because my partner doesn't go to my college. Does that have anything to do with it?