My girlfriend asked me to perform oral sex on her. She told me she was a virgin, so I did it. I know she doesn't have an STD because she is a virgin, But her vagina smelled really bad and didn't taste good either. So after I did it I was fine, but later in the day I started getting a sore throat as if I was starting to get a cold. Is there something wrong with me? And can you get sick from performing oral sex on a girl even if she doesn't have an STD?