I thought I had a uti. Sometimes it slightly burns when I pee, but only sometimes. And sometimes I feel like I have to go when I just went or feel like I have a full bladder when I just when not long before. I have lower back cramps that's the worse part of it. I don't feel nauseous much or anything just a pressure/fullness in my stomache. I've been drinking water like crazy to maybe selfcure it but still having back cramps so I went to the clinic two days ago. And they said everything was perfect. They'd send it into the lab to see if there's something they can't see they said they'd call yesterday but I still haven't heard from them. What could this be? I'm in a monogamous relationship and just got tested in April and I was clean. So don't think it'd be an STD/I.