I've had burning pain, weak right leg, pain at back of right knee for
the past ten years or more (plus incredibly flat feet). Doctors attributed it to muscle pain from scoliosis. However, I've just been diagnosed with Ehlers-Danlos Syndrome (EDS), Hypermobility type. It's a genetic condition where the joints are extremely flexible and the ligaments very lax. Only the joints my right side are affected, including my wrist, elbow, shoulder, knee, ankle, etc.