Regarding the following article found on [url]www.about.com[/url],
"...So, HIGHER TSH = UNDERACTIVE THYROID / HYPOTHYROIDISM.
If the thyroid is overactive and producing too much thyroid hormone -- due to disease, or taking too high a dose of thyroid hormone replacement drugs -- the pituitary senses that there is too much thyroid hormone circulating. The pituitary then slows or shuts down TSH production, so that the thyroid will slow down production of hormone. This drop in TSH is an attempt to to return circulating thyroid hormone levels to normal.
So, a test to measure the amount of TSH in your system will show lower than normal TSH when the thyroid is overactive. So, LOWER TSH = OVERACTIVE THYROID / HYPERTHYROIDISM.
If you are being diagnosed, the doctor will use the TSH test -- and hopefully, other valuable tests, including T4, T3, Free T4, Free T3, and antibodies tests -- to evaluate your thyroid function and determine the optimal course of treatment. But generally, for those who use TSH as a guideline, a TSH level from 0 to .30 is considered hyperthyroid/overactive, and a TSH over 3.0 is considered hypothyroid, or underactive. ..."
Has anyone else found this to be true? I had a TSH test done last week that came back at 3.4 on a scale between like .5 and 5. Two of my friends who suffer from hypothyroidism SWEAR I have it, too, as does my mom who has it. Yes, I am dismissed at my doctor's office as just being stressed.
Help. I'm sick of feeling tired all the time, cold, etc.