I'm 17 years old,sexually active and a homosexual (dont know if thats important) Recently ive noticed pain in my scrotum area and it's a sort of pressure type of pain,not stinging. however,that comes and goes,but now,on the head of my penis i feel a little stinging,like,where the urine comes out it feels stinging. im uncircumsized if that helps. What could be the problem here?