Please could any of you tell me the tests I can get my doctor to do for adrenal fatigue. I have had a synacthen for adrenal failure. And came back ok so I'm told! I seem to have nearly all the symptoms, I had a hospital appointment on Monday for something else and was stressed my usually low bp was high. But the next 2 days I felt so ill ,headache extreme tiredness and very low bp 92 over 56 and had to sleep during the day for a couple of hours. Is this adrenal ?