I've had this issue for a while, where if I'm sitting down or laying down, when an errection goes away, it hurts. Also my penis is wider toward the middle of the shaft now. It started after I came in from being outside in the cold and had sex with my girlfriend. It kind of swelled up for a couple days and now this has been happening. It has been months, so I doubt it's something that'll just go away. Also occasionally toward the base of the shaft there is a sharp pain after sexual activity. Anyone know what this is? Can I do anything about it?