My rheumatologist just diagnosed me -with adrenal insufficiency based on my symptoms. He referred me to an endocrinologist for testing and treatment. So we will see what she says but I feel awful. After 2 and 1/2 years on prednisone I am down to 12mg one day and 13 mg the next, etc. I thought you did not get this until you are below 10 or 7 mg? I am 76 years old. Anyone else experience this?