Hello,
Without examination,confirming a diagnosis is tough but the various possibilities for your symptoms are muscle fatigue or strain from overuse,stress fracture, tendonitis, claudication, osteomyelitis, arthritis(osteoarthritis,rheumatoid arthritis or inefctive arthritis), nerve damage like sciatic nerve
pain (radiating
pain down the leg) caused by a slipped disk in the
back or benign tumors or cystsof the bones.