Compression of nerve, deep vein thrombosis too could be causing leg
pain or it could just be overtired
muscles. So if nothing is found in the
knee, then these possibilities will have to be looked at by nerve conduction studies, MRIs or by duplex ultrasounds. At times dehydration and electrolyte mbalance is the cause for calf pain. So this too would need to be ruled out. Treatment will follow correct diagnosis. Do consult an orthopedic specialist at the earliest.