Ovarian cyst pain in a 16 year old.?

I never get cramps and about 6 months ago I was in so much pain on my period that I threw up and almost passed out and when I went to the hospital they found cysts on both ovaries and a cyst rupture. They sent me home with vikodin and told me to see a gynocoligists when I went he just looked at the transcripts from two weeks ago and said I was fine and sent me home. Its been 6 months and every time before my period avout 2 weeks before I start to get sharp pains that last a few minutes then when I get my period I'm in intense pain. I've been in the er almost every month and they always just send me home the last time they didn't even do an ultrasound and 3 weeks later when I finally got one it was too late and they found nothing. I'm getting tired of being undiagnosed and feeling like I'm going to pass out and always being in the er with the doctors who always send me home undiagnosed. Idk what to do.