# 792. Three Numbers That Tell Me More Than Your Doctor's Entire Thyroid Workup

Page: https://stenobird.com/podcast/the-female-health-solution-podcast-410185/792-three-numbers-that-tell-me-more-than-your-doctor-s-entire-thyroid-workup
Text version: https://stenobird.com/podcast/the-female-health-solution-podcast-410185/792-three-numbers-that-tell-me-more-than-your-doctor-s-entire-thyroid-workup.md
Podcast: [The Female Health Solution Podcast](https://stenobird.com/podcast/the-female-health-solution-podcast-410185)
Published: 2026-06-29T09:00:00+00:00
Episode link: https://drbethwestie.libsyn.com/three-numbers-that-tell-me-more-than-your-doctors-entire-thyroid-workup
Audio file: https://traffic.libsyn.com/secure/drbethwestie/Three_Numbers_That_Tell_Me_More_Than_Your_Doctors_Entire_Thyroid_Workup.mp3?dest-id=745215
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Duration seconds: 1727

## Resource

In this episode, I dig into one of the most frustrating things I see women struggle with: being told their thyroid is "fine" based on a single number, while they're still dealing with fatigue, weight gain, hair thinning, brain fog, and feeling cold all the time. Here's what I want you to take away: TSH isn't a full thyroid test. It's just a signal from your brain to your thyroid—not a measurement of what your body is actually producing or whether your cells can use it. The "normal" range is so wide you could drive a Mack truck through it. Normal doesn't mean optimal. The numbers I actually look at: Free T3 – the active hormone your cells actually use. It's the one that matters most and almost never gets tested. You can have plenty of T4 (the storage form) and still feel awful if you're not converting it. Reverse T3 – I think of this as the brake pedal that stress slams on. It's a mirror-image molecule (like your left hand vs. your right) that parks in your receptors and blocks the active hormone from getting in. Chronic stress, low iron, illness, crash dieting, and inflammation all push your body to make more of it. TPO and TG antibodies – these can rise 7 to 10 years before your TSH ever moves. Catching Hashimoto's early gives you a window to address the root drivers. It's never just one thing. Your thyroid gets ambushed—inflammation, stress, nutrient deficiencies, gut issues—all stacked and compounded over time. This is especially true in perimenopause, when rising cortisol, falling ferritin from heavy periods, and lower stomach acid all converge. That's why so many women hit a thyroid crash in their 40s. A real story from my own life: I went in for a checkup and asked to have my antibodies retested (I have a history of Hashimoto's). My doctor physically couldn't add…

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