OK, here goes. I was prescribed Hydrocortisone due to extreme fatigue, weakness, and no energy. My Doctor has been trying for over a year to try and figure out what is going on with me. I am on several supplements to help with fatigue, I have even done the 21 day purification diet, also the Micro Biome diet and that didn t work either. On the blood work he did, it was found that my cortisol level was very low. Is this the same as Corisol? And when I look this up online. It always refers to a topical cream. Nothing is mentioned oral doses and information. What do you know?