Help! Think I've got an STD!!!!?

first of all how selfish are you?? why would you let a girl go down on you when you KNOW somethings up done there... and learn your lesson!!! Use something!!! You do got something, i'm no doctor so i cant tell you, but you need to go asap... i think a few different stds can do that down there... Start thinking with the right head dude!!