During sex I get this sharp pains in my Belly and it feels like some one is stabbing the inside of my vagina with a knife, my lower back hurts too no matter what position -_- , every day I have pains on the lips of my vagina, my bells and my lower back hurts at least 2 hours each day, when I get my period it all gets worse the pain gets stronger and worse, then my boobs start hurting, my doctor couldn't see anything wrong in my blood test, urine test, or ultrasound, she now wants me to try the pill to skip my period for 3 months, the pill is making the pain not as bad when I don't have my period but when I first got it the pain was worse the bleeding was more heavy -_-. I don't know what to do -_-