Hi ..I have been having tests done for a number of things in the last few weeks, one of these test has come back that I do need further investigations and have to go for more tests to check for addisons disease because my cortisol level checked 3 weeks ago has come back as lower than normal....this I do know is an autoimmune disease and as I already have coeliac disease which is another autoimmune and I think linked to Addisons. I have no idea what cortisol is never mind if i have this disease then how will it affect my life?..I am so scared and have no idea what my future holds...cant google as afraid of what I will read. Would appreciate if anyone could give me some idea of what is a normal reading for cortisol that was taken at 5.30pm (apparantly time it is taken is important)and what warrants further investigation. Many thanks in advance, hopefully somebody cant alleviate my fears. thankyou