Even when I was younger I would always have UTI's or burning in my vagina because I would hold my pee for long amounts of time. Now that I am sexually active I get them a lot more frequently. My current boyfriend and I have been having sex for a little over a month now (unprotected) and each time it burns like crazy resulting in me having to go to the doctor. Well this last time which was last Monday we had sex almost five times in the same day, and for literally 35 minutes each time. The next day my vagina was on fire literally. I was in the restroom almost the entire day and the pain was awful. It's stings just sitting here. My pee does smell, I have more yellowish snotty looking discharge now, and I have this sensation of continuing to pee even when I don't have to pee. It's been a week exactly and I'm just worried I might have an std. My boyfriend said he was checked and was negative for any stds, I was checked in the past and was negative as well. I'm just worried and I need answers. Please help