Doctor sometimes I have larger testicles and sometimes they having little bit burning sensation in lower. I masturbate rarely once in a month but it is not so pleasurable like before. I recently read about protests does I have a protest. I check for the urine and semen test both are normal. I have nowadays backpain. And I feel urinate while having an erection. please tell me what to do. I am virgin no smoking and drinking habit but having 3-4 cup of tea daily. Water consumption is low.