When someone is always tyerd and her knees hurt from an old injury, and know has some arthritis in a knee.. what could be wrong. sogo to sleep at all.

Old knee injury. : Knee pain not likely to be related to bring chronically being tired. So most likely the fatigue and the painful knee are two separate problems. The most likely cause of pain in one knee from an old injury would be a strain of one or more ligaments and tendons. For evaluation of the knee look to a sports medicine or rehab dr. Who could also answer questiosn about sleepiness.