I had a decent 30 minute masturbation session using the "Stop & Go" method. After I finally ejaculated, I felt something being stuck in my penis (like leftover semen but it was a strong feeling). I felt the urge to pee after about 30 mins (which never happens to me. Usually I feel pretty relaxed for at least a good hour). It took me about a good minute just standing there with my pants dropped until urine finally came out. The stream was very weak and it would stop and then restart again. Is this normal? Is it because I masturbated for too long?
I think you should go see your doctor, it could be a kidney stone.
Are there any other symptoms?