Hey so I'm a guy and im a 15 year old virgin and two days ago I was, er, touching myself and I accidentally pulled my foreskin and held it for I few seconds and immediately felt something, kind of like a tingling sensation down my penis but different from, you know, other tingling sensations that I might have felt at the time. I stopped,deciding that I should probably stop(and i was late for something anyway) later that day I resumed touching myself, and after I came my penis ached for a few seconds(it never did that before) I as I inspected my penis for a reason I realised I had a bruise on the bottom left side and a smaller one on the head. I immediately searched the internet to find what this was and found out that it was a Bruise and I couldn't get rid of it and that it shouldn't affect me. But yesterday night(I don't usually do it twice in a row, but yesterday was a good day and I wanted to celebrate) after I came again my penis ached for a few seconds and this time the spot above my penis(groin I think its callled) ached and when I moved my leg a certain way it hurt(it faded over time and was gone by this morning). I was wondering if I should be worried about anything and if this penile bruise might eventally go away.