| Re: Hypothyroid or am I crazy?
For thyroid, blood tests are best; but they have to be the right tests and interpreted correctly.
Insist on tests for levels of TSH, free T4, and free T3 [not 'total' T4/3]. If you can, get tested for antibodies to TPO and Tg. A minority of MDs might be convinced toward a diagnosis with positive antibodies even in the face of so-called "normal" TSH.
If TSH is above 2, and/or free T4 or free T3 is below lab median... Either is a sign that your thyroid is sluggish and thyroid hormone levels are too low for your needs. Healthy people have TSH around 1 and free T4 well within the upper portion of its range. Sometimes, FT4 can be sufficient but doesn't convert well enough to the active hormone T3. In that case, FT3 will probably show low in its range.
Most doctors are not trained to think this way. They will see TSH even as high as 10 and believe everything is fine thyroidwise. If that's the case - if TSH is high normal or above it, of if T4/3 are below lab median, but you're told all is "normal" - seeking other opinions can usually find a more sympathetic and thyroid-savvy MD.
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