Low 9am cortisol?

[mushumouse]

Hi all

I wondered if anyone may have some advice regarding 9am cortisol please.

My 9am blood cortisol has been tested a few times now and the last three tests have been 142nmol/L | 172nmol/L | 192nmol/L

(I suspect the most recent one is higher due to having an extremely stressful time before it)

I have had a total thyroidectomy and take Levo and T3 and my latest results are

TSH: <0.01

FT4: 19.5pmol/L

FT3: 6.1pmol/L

My endocrinologist doesn’t seem concerned about the cortisol but having read a little online, it sounds like it is too low? Does anybody have some advice please?

I always feel terrible but as my thyroid levels look good, I tend to put it down to my little kids and crazy job, but I’d like to understand if it’s something else?

Many thanks!

[BattlingBS]

It would be wise to have a short senacthen test and glucagon test to check for adrenal insufficiency. Your endo not being concerned about low morning cortisol is in and of itself concerning, but it's likely because cortisol levels do go up n down a lot. The levels you've quoted are on the low side, but I've seen much lower and still been told it's nothing to worry about. Personally I'd ask for the tests to be on the safe side. Hope that helps.

[humanbean]

If you want info on the Short Synacthen Test read pages 68 - 70 in this document :

imperialendo.co.uk/Bible202...

[samaja]

Definitely push for the short Synachten test and also possibly have a 4 point saliva cortisol done privately to see the full 24 hour profile.