I had two complete hip replacements , 6 months ago, first my right, then my left about 6 weeks later. I had bone on bone, severely arthritic hips. My hips are doing well but I have started having severe knee and shin pain in both legs. I am 46. First my knees started to hurt, then within days, my shins. Its very painful. I feel it must be related to my hips. Can you give me any insight? Thanks