This is Dr. David
you need more testing before we can say you have low circulating cortisol levels from your adrenal glands.
you need an AM cortisol level and ACTH level
and you might need a ACTH stimulation tests to check the function of your adrenal gland.
low adrenal cortisol hormone secretion or adrenal insufficiency is a rare condition.
most people's adrenal glands work properly.
but thyroid hormone abnormalities are much more common.
the American Association of Clinical Endocrinologist in 2001 suggested new normal levels for TSH levels to be between 0.3 and 3.0
so some endocrinologist will consider TSH levels above 3.0 to be hypothyroid
you should see an endocrinologist about your thyroid, you might benefit from a low dose of thyroid hormone to get your TSH levels between 0.3 and 3.0
if you are having fatigue, you should also get your iron and ferritin levels checked.
and also estrogen levels checked as well
you could be having some early menopause and decline of your estrogen levels which can cause fatigue as well.
let me know if you have other questions.
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