MY VAGINA IS SO UNCOMFORTABLE,RED,AND ITCHY...HELP!!!?

If you have never been sexually active, it's likely you don't have any "real" disease. Take a shower and head to Planned Parenthood. They'll give you an exam and send you home with some stuff to put on it most likely. To prevent this kind of thing in the future, keep yourself clean, shower after you exercise, don't wear jeans that are too tight, and change your underwear every day.