I do - I think. Whenever I'm alone and naked I'm fine. Even when dressed (and wearing boxers) my cock hangs down and even swings but when I'm at the gym or my weekly nude yoga class it shrinks. I can't seem to do anything about it. I do the occasional tug but that doesn't last long. I don't seem to see other guys with this problem. In my yoga class I look around and all the other guys hang nicely but mine retreats. Does anyone else have this experience? How do you deal with it?