ahhhh....no working out

So I was having some knee issues and was told it was jumper's knee.  So when I ran the Mud, Sweat, and Beer run, I heard something pop and my knee starting hurting more.  I went to see the sports doc who confirmed it was still jumper's knee and sent me to PT.  The doc has said I can run, but the PT said no working out lower body until further notice and sent me home with a heel lift for my shoe, and PT exercises.  I feel like everytime I get a head, I fall behind.  This road to competition is hard.  On a plus note, I took a free fitness competition seminar.  I have occasionally jumped on these webinars that are very informative, so now I know what to expect and what to change.  I am already working on the change.