I am 35 year old female. I am having pain on my knees of both the legs for last 2 months. Some time it get automatically cured and again come back. I went to orthopedic Dr. he has given me Uprise D 60 k medicine once in week for 2 months. I have taken 2 medicine each week but still pain not cured. PLs suggest is this treatment is correct or how to get relief .What is reason of keens pain in this Age. Is it purely deficiency of Vitamin -D. I have never get any injury on my legs or keens. When I bent my legs i.e. Sitting on floors folding legs for longer time (20 mnts) then pain increases.