Thread creep - sorry. But I am having major knee problems. A month ago I carried a very heavy box down to the basement. At the bottom of the stairs, I turned but my lower leg didn't. Horrible grinding sounds. That day, it barely hurt at all. But next day there was a huge nasty bruise and swelling as well as lots of pain. Hot compresses and a knee brace help but I still have trouble going down stairs (not up - leave it alone, Spaw) and any amount of walking hurts. But if I sit any length of time, it "freezes up" and that hurts too. Any suggestions?