unbearable vaginal pain

Ok so I'm 17 years old I started taking birth control about 2 months ago and I haven't had sex for almost 2 months either. I started to feel a little discomfort down there when I got my period on Thursday? When I put my tampon in it was extremely difficult and the entire time it was in it hurt like crazy when I took it out it was more painful this happened for about 4 days and I just shrugged it off believing it was nothing then on the 4 night my inner vaginal flap things started to itch like crazy so I scratched and the same with the next day it started to hurt a lot. And again with later that night it hurt much more the inner flaps were red inflamed burning and it got worse the next day being more inflamed burning stinging and itchy the same as that night the itchiness was unbearable I couldn't sleep at all . and today I was in the most pain I have ever felt. I can barely walk without it being in pain I can't sit without a shot of pain firing through me I can't do anything at all I can't lay down without it hurting or using the restroom without it feeling I'm being skinned alive. I'm in so much pain I can't take it i cry because the pain is unbearable I want to die. I have not gone to the doctor I'm too embarrassed to tell my mother please help me please