Hi for 10 months & multiple hospital admissions last year I had insomnia headache irritability seizures Not 1 time did anyone think to do a cortisol blood test on the NHS then did 1 this year I had trace amounts of cortisol diagnosed with Addison's disease. Now since I've been on hydrocortisone my sleep got a little bit better but last few weeks gone back to the tables keeping me up. My thyroid & testosterone crashed out as the brain scan showed pituitary disease My pituitary is not functioning whatsoever. I'm on 3 types of Hormone replacement but the hydrocortisone is keeping me awake. I'm only able to have 2 doses a,day as a 3rd will keep me jacked all night. 1st dose 15mg 2nd dose 10mg. Any tips your personal experience? I'm getting better 2 & 4 hrs a night I feel dreadful