06/11/2026
“Your results are normal” might be the most frustrating sentence in women’s healthcare.
Because normal on a lab report and optimal in your body are not always the same thing.
The standard TSH test measures a signal your brain sends to your thyroid. That’s it. It doesn’t tell you how much thyroid hormone is actually reaching your cells. It doesn’t tell you whether your body is converting it properly. It just tells you the signal was sent.
And in perimenopause, when estrogen is shifting, the way your body uses thyroid hormone changes too. So you can have a perfectly normal TSH and still feel exhausted, foggy, cold, and like your hair is quietly disappearing.
This is why so many women in their 40s are dismissed. The test looks fine so the conversation ends there.
But your symptoms are data too.
If you’ve been told your thyroid is fine and you still don’t feel fine, you’re not imagining it. There’s more to look at. Follow along.