I have a history of trauma to the knee. A physician diagnosed me as having sprained my medial colateral ligament and a 1st degree medial meniscus tear. The physical therapist disagreed and said it was a only a strain of the vastus medialis. So i was treated for that. I was fine until returning to biking left my knee sore. Now I'm experiencing slight pain. My knee becomes extremely stiff after having a shower. What is going on?