5 months ago I wrote a post regarding a recommendation by my Endocrinologist to change from Prednisone to hydrocortisone in order to 'wake up' my adrenals. I was reluctant to change because I have GCA and lost the sight of my right eye and also having read the replies to my pos, advising me against the change. Endo not happy with my decision but ordered a further Synacthen test in 3 months. This took place last week, which showed once more Adrenal Insufficiency (Addison's). Endo once again stressed the importance of changing to hydrocortisone. He said that unless I changed by symptoms of fatigue, lightheadiness etc would not improve. However, I am very confused because my Rheumatologist is telling me to reduce my Prednisone (at present I am on 6 mg reducing by .05 mg per month) and the Endo wants me to take a higher dose of hydrocortison 20 mg, 10 am, 5 noon, 5 at night. Does anyone take hydrocortisone instead of prednisone, or advice on what action I should take would be appreciated.