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Hi, I am looking for some advice.
Suffered with chronic fatigue for eight years and been on thryoid medication (levothyroxine and also tried liothyonine for some of that time).
I recently had an overnight dexamethasone suppression test as my random cortisol levels were very high and this one also came back abnormal (59 but they didn't give me the ranges).
They said that as the cortisol levels weren't sufficiently suppressed, they also want to run low dose and high dose dexamethasone suppression tests to exclude excess cortisol from the investigations.
Does anyone know about these cortisol tests and why they would do a high and low dose test? They don't ever explain anything and I just get sent a letter in the post. Im hoping this doesn't indicate I have cushings disease- my doctor wasn't concerned by the result but the endo was, so now I am confused!
Any help or advice would be appreciated
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