Period

I’m 17 years old and for as long as I can remember I’ve always bleed on one side. How do I know that? Well I wear tampons. The left side of my tampon is always bloody and the right side is not. My mother is 36 and she has ovarian cyst, I’m extremely scared i may have something of that sort or worse. I have mayor scrap pains in my left side ovary, doubling over pain. I’ve heard many things about ovaries being split down the middle or only being born with one. I’ve been to the Obgyn for birth control for my bad periods, I have awful problems with a heavy flow and pains but still so afraid to tell my doctor. I’m very too myself and dread the thought of someone touching me of seeing parts I’ve always been told to hide..