My 6 year old son started limping on his right leg. He said his leg feels tired and when we took him to the clinic, they didn t notice anything other than the pain was in his knee. They prescibed orapred and he said his knee doesn t hurt, in fact he has no pain. However he still limps when he first wakes up and after sitting. I asked his teacher if she notices him limping as well as the folks in aftercare, but they all say no. I am concerned and confused as to what this is as there is no swelling, pain or fever and he runs, jumps, climbs and plays like normal.