To accurately diagnose NASH, you need to run some medical tests, starting with basic blood tests and cBCs to make sure that the blood is abnormal, and then check glucose levels and lipids to see how they affect your system. Finally, to make sure your body is functioning properly, you need to do a scan of the C.T. to make sure your liver is clear.
Doctor, you've recently had abdominal discomfort, and you've been feeling fatigued, and it looks like you've got non-alcoholic liver disease.