<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I am experiencing side pain, arm stiffness or tightness, shoulder swelling and also pain or soreness of the breast. What could be the problem?  <response>: Based on your symptoms, it is possible that you have Syringomyelia. It is a rare disease that occurs when a fluid-filled cyst forms in the spinal cord, leading to various symptoms including the ones you have described. It is important to get a proper diagnosis and treatment. 