I'm 19 yrs old. I'm not pregnant. I've gone to the Urologist lately because I'd have the urge to urinate a lot, especially at night, but when I go I dont go very much and I don't feel very much relief from my bladder. I feel like I could still go after I go to the bathroom. Also, I have an occasional aching in my left lower abdomen. Its never the middle or right side, always the left. So at the urologist, I gave a sample and that was clear, no infrection. He gave me some medicine thats supposed to help with the urge to go. But he doesnt know for sure what the problem is. Hes ordering a pelvic ultrasound on me, because he doesnt know what the left aching is, maybe the ovaries. He also gave me some medicine through a catheter to calm my bladder. That helped a tiny bit but not much. I possibly have cistitis, but I'm worried about the left abdominal pain. Anyone have any ideas?