When I was 8years old I meet with an accident that was a bullet hit me on my spinal cord I lost my bladder and bowel sense still I using pamper I can't control my urine And at the time of sex erection problem but when I watch porn or I think something then it erect very good but at masturbations the urine come with sperm first urine come in pressure and both come together please help me I will be very grateful.