I'm 19 years old. I'm a virgin and recently while masturbating with my figer (I have annual type of hymen)... I've discovered I have some kind of tissue inside my vaginal wall on the left. It is the texture of the mushroom on top of it, so it is like a circle with a bump. It's inside, so it's not something I can feel through the walls. It's inside. It's very smooth, and spongy. I feel very scared. I've received oral sex in August and he used his finger to penetrate me. I also have PCOS. I feel very scared because I don't know what it is. I've noticed it in September and it was a size of a chewing gum, in November it was a size of my nail and now in December it's a size of the top part of my finger. So it is growing and I can feel pain in my left ovary and in a place that connects my body with my left leg. My periods are irregual since I was 13 because of my PCOS.