I'm 18 and a virgin, but I have engaged in some sexual activity. That is to say that I have been penetrated, but not by a penis. That is why I'm not so sure that this "thing" is my hymen. It looks like swollen flesh and it is sticking out and covering my vaginal hole with only a small crease at the bottom of the hole. It burns a little when I urinate which is out of the ordinary for me. I'm in complete control of my bladder however. It could be my hymen, but I thought it was supposed to be a thin layer of skin, and that's not what this is. Any insight that you can provide is much appriciated!