@drob31 I am not taking anything. for some unknown reason drs are not responding to these low cortisol numbers. Last year had an Endo completely dismiss even low serum cortisol. Said she did not believe the lab cause it was not her lab, whatever that means, it was the lab in the hospital her office was attached to. still waiting to hear back from llmd and or pcp about these numbers. Endo Screen Research also related somehow to SabreSciences. I ordered it fron Mymedlab online. the name of the test is SSFemaleCircadianHormone. it has 6 cortisol collections rather than the typical 4 in 24hr.