<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been experiencing fever and pain in my upper and lower abdomen. I have also been having chills. What could be wrong with me?  <response>: Based on your symptoms, it seems like you might be suffering from diverticulitis. It is a condition where small pouches or sacs in the wall of the colon become inflamed or infected. 