Sorry, wasn't quite sure where this question belongs. A couple weeks ago was the first time I had sex of any kind, it was oral. I provided cunnilingus for my girlfriend. To my awareness I was perfectly healthy at the time and as I said, I had never had sex before that point. But now she's complaining about a soreness in her vagina that just occurred, (not actual sores, but more of an ache) and all around her pelvic region. She also says her bladder hurts and that she's peeing alot more frequently. Looking up her symptoms we were both pretty sure that what she had was a urinary track infection, but she's still paranoid about it. I want to be able to assure her that I'm 100% sure its nothing worse than that, but I've never actually been tested for STD's before. I didn't think I'd need to seeing as how I had never had sex, so I guess my question is a three parter. What STD's can you get without having sex? Of these, which would show no symptoms in the host (as i feel no symptoms and never have)? And of these, if any, which can be transmitted orally?
Also, are there any other infections that could be causing this that I might have (and be unaware of) that could be passed on through sex, but aren;t typically classified as STDs?