Hi there, please help any one. I have been for the last three weeks with a very bad burning pain at the back of my penis, lower abdomen, behind pelvic bone etc. I went to the Dr. He ordered blood work as per he thought it maybe STD or some sort of. Also he ordered ultrasound to see if there is a problem with the kidney, bladder or prostate. Today results came out and he says there is nothing wrong with you. But the burning paind continues. Once before I got something like this and they said it was UTI and with intibitics after a few days I was okay. My roommate gave me a week ago some penisciline as we thought it could be the same, but nothing is helping. Can someone help please?