04/22/2026
Your TSH came back 1.8 and your doctor said everything looks great.
But you donât feel great.
Youâre eating clean. Working out. And still exhausted â still stuck.
Hereâs what almost nobody tells you: TSH is just a signal from your brain to your thyroid. Thatâs it. It doesnât tell you how well your body is actually using thyroid hormone.
Your thyroid makes mostly T4. That T4 has to convert into T3 â and T3 is what actually drives your metabolism. A large portion of that conversion happens in your gut.
So if youâre constipated, inflamed, or your microbiome is off â your TSH can look perfect while your metabolism is still dragging.
The loop looks like this: â Gut inflammation keeps the immune system activated â A chronically activated immune system interferes with thyroid signaling â Disrupted thyroid signaling slows your metabolism
Thatâs why the weight wonât move.
Normal TSH doesnât mean the whole system is working. It means one number is in range.
If your labs are âfineâ but your body feels completely stuck â comment TSH below and Iâll show you what I look at instead. đ