<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I am feeling very tired and exhausted all the time. What could be the reason for this?  <response>: Well, based on your symptom of fatigue, its possible that you may have cardiomyopathy - a disease of the heart muscle that can lead to fatigue, breathlessness, and other related symptoms. Well need to do further tests to confirm the diagnosis. 