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Message: <blockquote data-quote="DCUKMod" data-source="post: 1901226" data-attributes="member: 345386">To my understand TSH (Thyroid Stimulating Hormone - syas what it does on the tin) is secreted from the pituitary gland to stimulate the thyroid gland to get going.  The higher the TSH number the harder it's having to try to get the thyroid going.  The T4 and T3 (and the other sub set) levels indicate how the thyroid is actually performing, so a low TSH means the pituitary isn't having to work hard to get the thyroid going.  The higher FT4 shows there's plenty going on in the thyroid, but only when the T3 comes into the mix do we start to see the near whole picture as the T4 has to convert to T3.Has your T3 ever been tested to your knowledge?  Along with that, have your thyroid antibodies been tested?Just like diabetes, it seems like a simple thing, but heck, the devil's in the detail!</blockquote>

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