<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi doctor, I have been feeling very weak lately and my skin has been becoming darker. I think it might be possible that I am experiencing glucocorticoid deficiency.  <response>: Based on your symptoms, it is possible that you may have this condition. To confirm this diagnosis, I would recommend some tests. These tests include hematologic tests, a complete blood count CBC, urinalysis, intravenous fluid replacement, kidney function tests, glucose measurement, and electrocardiogram. 