FWIW, I pulled/twisted my knee a few weeks back falling on the ice. Putting on an ACE wrap for the first week or so, and then on days I know I am going to be on it more, has helped a lot. The wrap makes me both more careful with it and gives it some extra support.

I'm not saying don't see a doc if it doesn't get feeling better (my wife would kill me if I suggestested that :); just trying to offer something that my make it more bearable until you figure it out.