<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, Ive been experiencing some difficulties lately. I have some problems breathing while smoking, I feel a lump on my breast and its often sore. Additionally, Ive been having leg cramps and my lymph nodes are swollen. Whats wrong with me?  <response>: Based on your symptoms, it seems that you may have had a mastectomy. Have you had surgery to remove one or both of your breasts? 