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About Thyroids
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jenett From: jenett Date: 14th February 2013 01:35 (UTC) (Link)
The reference ranges are complicated (plus, this is all US experience: I don't know what the British bits of some of this are.)

Basically, in 2003, the Amercian Association of Clinical Endocrinologists decided to treat 3.0 as the borderline for diagnosis, if there were other symptoms. Prior to that, it had been 5.0. However, not everyone follows the new guidelines, and there's some variation based on lab, and so on and so forth.

I was having major major major symptoms with a TSH right at 3.0, and that + having a doctor who had trained entirely under the new ranges and was used to doing whole-body diagnostics got me treatment. (I got very very very lucky here: documenting my symptoms plus "This is stuff I used to be able to do easily, and now I can't" seems to have been very helpful)

With a TSH of 7, especially with it increasing steadily plus a weird drop, there's a much better chance of them treating it.

The thing about the thyroid is that it can go through fits and starts, if what's causing the problem is the auto-immune response (which is Hashimotos) - basically, that's when the thyroid will overwork periodically (and send you hyper, which I'm pretty sure is what it did to me briefly), and then it will go hypo (underactive) again. Which can be really hard on your body, and also really annoying.

Some info here (US focused, but might give you useful stuff to work from): http://thyroid.about.com/od/gettestedanddiagnosed/a/tshtestwars.htm
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