I'm a teenage girl. I masturbated. While I was masturbating my sides hurt really bad but I ignored it. Now my stomach is in some serious pain. I cant sit. It feels like i'm wearing super tight pants when on my period. It comes and goes. Sometimes, it hurts soo bad. Sometimes it barely hurts. I don't know if i'm on at the first stage at the menstrual cycle starting, or if I just hurt a nerve system. How do I make this pain go away?!