complicated situation about possible std and virginity

[raybla123]

so i have been together with my girlfriend for 5 months so far and the situation goes like this :
she claims to be a virgin, but there were some reasons that make me think otherwise
- when we first had sex, she came on top and it fit easily without it hurting and she hadn't had blood coming out which seemed strange, so one question does it make sense?
- by the way, we both hadn't been tested for stds, and i never had any sexual contact with a woman before her, she had been gave oral sex only to one person and received from different people a few times
after some time she started the pill and we started having unprotected sex, but with time it started hurting her and each time it hurt more and more until it was unbearable and we stopped having sex.. she went to the doctor and he said everything is fine, but didn't do any tests, so i think there may be an std here somehow..
her symptoms include inflammation when i penetrate, yellow and thick discharge, itchiness around the entrance, and when i give oral sex it feels acidic
as for me, i haven't been experiencing any symptoms at all..
i have an appointment to the doctor in 2 days, but otherwise, not related to this, i would like to hear what could be going on here and how could this all make sense,
thanks in advance.

[Life360_Dave]

Hi a yellow discharge indicates a yeast infection that all women get from time to time and it would irritate her vagina lining causing friction pain. It doesnot indicate any std from what you describe. She can either see her doc for treatment or talk to the local drug store pharmissit for over the counter cream like mono stat. A person can still be a virgin as many things can make the hymen break including the use of tampons.

[Joejoesmith]

Sounds like maybe she has bacterial vaginosis which can be non std related. To doubt her virginity because of no blood or "tightness" isn't the most logical way.