Last night, i was doing a supposed penis enlargemant technique called "jelquing". Suddenly i looked down and on the left side of my shaft, it appeared that my dorsal vein had burst and created a blue lump the size of a piece of corn under my skin. Immediately ice packed it and this morning the swelling has gone down, however it looks heavily bruised. I have been able to have an erection without problems and there is no pain as such. Will this just go in time? Do i need to seek medical attention or have i just overdone it? Has anyone ever had this problem? It can only be described as a burst blood vessel, no popping or anything like that. I'm absolutely brickin it at the moment and would appreciate any advice.