I recently masterbated and right before i ejaculated i felt a pain on the back top side of the shaft. I did not think much of it at the time. But about 5 hours later i went pee and a small little clot of blood came out follwed by about a 3 inch stream. the same spot hurt. i have not peed since but when i flex my penis it hurts a little i that spot. what is wrong could i have a blood vessel blown or something?