when I awaken after four hours of sleep, I have trouble walking as my legs feel like they are almost broken. After I am up for a bit all is well again. I do have a bad knee. It bothers me as well but I an function well during the day. I can work outdoors, mow the grass and all goes well. What is my problem?
Thanks for asking me this question. You don't  mention your age.Above 50 year  because of wear and tear of bone can occur joint problem.If any history of trauma is present than first do your x Ray.Check  your blood calcium level also.If knee joint site  is warm and erythematos it ruled out osteoarthritis. Any catching or locking sound is present at knee joint area it rule out osteochondritis maniacal tear.Bilateral knee joint involvement  indicate rheumatoid  arthritis.Above 50 year generalize knee pain indicate pattellofrmoral syndrom.Because of lack of calcium level that lead to osteoporosis .Take care.