Hey all...just thought I would share a baffling pain pattern from my knee. I have had many injuries over the years but I never had one behave like this. I get a mild pain underneath my knee, just off to the inside. The pain is the worst after I've been sitting a while and walk, but is never bad when walking. It is more noticeable when I climb stairs. I had no trauma that I know if, it just happened one day. The kicker is, after I go to BJJ class, my knee is pain free for hours, then it slowly creeps back in. I have had it for a week on and off. If it stays around too long or gets bad, I will see my doctor, but I just thought it was strange the way it goes away during class and stays OK until 4 or 5 hours afterwards. Anybody ever have injuries disappear for a while during and after class? Just chalk up another majical property of BJJ :wink: .