I just turned 43 and my knees pain like anything if I sit for long time and also I can't lift it please suggest me any medicine

A. Usually it is associated with deficiency of calcium and vitamin di so I think it is a good time for you to visit an orthopaedic to know exactly what’s the problem these are the basic you can share with your doctor before you start with but sometimes it can be associated with other issues also it’s more sensible to consult an orthopaedic ones