Last night I masturbated and this morning when I went pee I felt a really sharp pain. I've gone pee two other times since and the second time hurt just as much and produced a little amount of visible blood. The third time didn't hurt as bad, but there was more blood. I've had to deal with the pain a couple times before and it always goes away after a day or two. I just wanted to kow if this was normal or if I should go see a doctor? 

I've read that it could be a soft tissue thing, but I don't want to leave something like this to chance.