Hi I have had Primary Adrenal Insufficiency for 15 years and I have been on Prednisone(5mg) Florineff(1mg) the entire time. For about 1 year I have been extremly exhausted. I spoke to my Endo and he told me some people need more sleep than others. Which really irritated me because I get a solid 8 hours a night. I have tried eating healthier and excersing but I am still so exhausted. Any suggestions would be greatly appreciated?