hello, in a bizarre incident, i watched a scene, it disgusted me but i became curious so i tried to insert the elastic of my pyjammas through the tip of the penis and masturbated, then pulled it out.. i was fine later until when i passed urine, i felt severe pain and burning right at the tip, almost the end of the penis, just a second before urine comes out, i feel the pain, i did not see any sign of bleeding, but the pain is making it difficult to pass urine.. I am thinking to drink less water from now so i dont have to pass much urine... is it a cut, a bruise? how long with the pain last? will it go on its own? its obviously an injury from trying to stretch the penis hole.. but is it serious ? i am 20, male