<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been experiencing ankle pain, knee swelling, and my bones are painful. In addition, I also have elbow pain and a lump on my knee. What could be wrong with me?  <response>: Based on your symptoms, it is possible that you have osteochondrosis. This is a condition where the bones and cartilage in your joints do not develop properly, leading to pain and swelling in the affected areas. 