At The Point Of My Hip The Muscle And Tissue

At the point of my hip the muscle and tissue around that area is tender to the touch. I can press on it to the bone area and the bone feels tender too. I have not had an injury or any accident and this has been with me for a few months and hasn't gone away. When I am sitting down and try to get up my strength in that area is not nearly as strong as the other side. I am 51 and in good health. Not sure what to do or what this might be.