<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, Im worried about a lump I found in my breast and Ive also noticed changes in my stool.  <response>: Based on your symptoms, it is possible that you may have intestinal cancer. We will need to do some tests to confirm this. Note: While a dialogue can be generated in this format, it is important to note that in reality, a doctor would not diagnose a patient with a disease based solely on the patients description of their symptoms. Proper medical examinations and tests would need to be conducted to make an accurate diagnosis. 