Hi, I'm a 17yr male teenager. I ejaculated for the first time the previous week and sperm came out within 5 minutes and it felt really good. Then I started doing it 2 - 3 times a day and sperm came out perfectly, but for the last 2 days I always feel the sensation of peeing while doing it and the feeling goes away and I cannot ejaculate. Is it some kind of a serious problem ? Should I consult a doctor ? Please help me out you people.