piece of flesh hanging out/blocking vagina opening

Ok so, I'm 16 years old, born female but I'm transgender and not into men, and when I was about 14 I was sexually assaulted by a man. I've told my mother via text message but was too scared to word it was raped directly and so I think she took it as "Oh I had sex and wanted you to know lol" type of thing. About around September I, unfortunately, was assaulted again by someone I thought I used to trust. Now, I'm a very paranoid person, and months ago when taking a shower I noticed something blocking my vagina opening. I could stick a finger in sometimes and sometimes the thing hangs out. It's inside at the top wall of my vagina. It doesn't hurt at all too. There's a lost a little tiny one at the bottom opening of my vagaina. About two weeks ago maybe I was diagnosed with a UTI. The doctor kept asking if I was sexually active or have even been. I was too scared, what was I supposed to say? "Yes I've been raped twice. TWICE" in front of my poor grandmother who had no clue and still doesn't. It's been there forever and I'm so scared and tired of stressing on it. I wouldn't mind showing a picture to help understand but I'm only 16 and I'm sure they'd get me in a heap load of trouble. Any suggestions, thoughts, opinions would be so appreciated!