For about two years now, I always have pain while peeing, and the pain lasts for like 30 minutes or so afterwards. I also have to pee very frequently, so the pain almost never goes away. And at night, it always feels like I have to pee so I will get up several times but nothing will come out, and the attempt at peeing will only make it feel like I have to go even more. I've been to the doctors several (maybe 5) times and they always say that there is nothing wrong with me. No bacteria, no UTI, no bladder/kidney infection. They've even sent it off to the lab to be tested and it's still come out negative for any bacteria or anything wrong with me. I am not sexually active. Does anyone have any clue what could be wrong? Please help I'm so tired of being in pain...