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Thyroid or Adrenal?

Hey, last April I took a bunch of blood tests and then started a Keto diet, and have lost over 40 pounds since. My thyroid numbers were in normal range (though on the lower side of normal), my TPO antibody was 14 (normal range) and my cortisol test was also in normal range (though on lower side of normal too), except for my morning cortisol which was very low. My DHEA was in normal range.

I thought I could have Cushings, but low cortisol is more alongside the lines of Addisons. Addisons typically means you have a hard time gaining weight, but I have a hard time losing weight and I gain weight very easily.

My whole life I've had issues like fatigue, I wake up feeling like I never slept, I get tired very early at night, I struggle to lose weight, I gain weight easily, I get brain fog, IBS, anxiety.  I can lose 4 pounds in one week, then gain it all back in a few days if I start to eat some junk food (regardless if I'm moving all day).

Keto has helped me drop weight and feel better. I try intermittent fasting but it doesnt work at all for me, I get fatigued and moody. Eating 4 times a day (2 meals, 2 snacks) is what works great for me, so I often wondered if I have issues with my adrenals and thyroid.

I was told by one doctor that my thyroid numbers are normal, and another said I could have secondary hypo (pituitary). I am struggling to understand what the issue is, my thyroid numbers plus my cortisol and DHEA numbers dont seem to indicate anything for sure, just "maybes". Does anyone have any opinions?
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649848 tn?1534633700
What tests are they ordering to determine whether your thyroid function is "normal" or not?  They should be ordering Free T4 and Free T3, along with the inevitable TSH, which is actually a pituitary hormone not a thyroid hormone and isn't necessarily indicative of actual thyroid status.

It would be helpful if you could post your actual test results, so we can see where you levels are.  Be sure to post reference ranges, as those vary lab to lab and have to come from your own report(s).
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