<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been feeling really tired lately, and my arm has been swollen for a while. Also, I have been experiencing nausea and aches all over my body. And to top it off, my skin has turned yellowish. What could be wrong with me?  <response>: Based on your symptoms, I suspect you may have pancreatic cancer. We will need to run some tests to confirm a diagnosis, but your symptoms are indicative of this disease. 