I've had a cold- cough, fever, etc- for the past few days. When I woke up this morning, I felt pain in my vagina- Similar to the feeling of having a tampon in wrong. Looking, I found a small, blueblackish bump near the opening. I'm 16 and a virgin- never had sex, never done anything remotely sexual except masturbation, never even been kissed. I couldn't have an STD, could I? I'm frightened.