Low TSH levels

[j_jotte]

My T3 and T 4 are within the reference range, 3.7 and 1.0 but my TSH is low .01. I feel fine and am not having any issues. Except my Doctor wants to reduce my Armour thyroid again - I was taking 120 then was reduced to 90 and now am being reduced to 60 - besides the hot flashes and seeming to being more hungry    Anyone have any thoughts?

[gimel]

Not sure what happened but it should read, doctors don't understand, etc.  

[gimel]

Don't understand that most patients taking thyroid hormone at a dosage adequate to relieve hypo symptoms will have suppressed TSH levels.  This is a result of taking a full dose of thyroid hormone once or twice daily resulting in an equilibrium among TSH, FT4 and FT3 that is quite different from that with the usual continuous low flow of natural thyroid hormone in the untreated state.   Studies have shown that most hypo patients taking adequate thyroid hormone to relieve symptoms will have suppressed TSH.  That does not mean hyperthyroidism unless there are attendant hyper symptoms due to excessive serum levels of FT4 and FT3, which you say you don't have.    

If you want to confirm what I have said, then please click on my name and then scroll down to my Journal and read at least the Overview of a paper on Diagnosis and Treatment of Hypothyroidism: A Patient's Perspective.   I also suggest reading Recommendation 13, on page 13 of the full paper.  

In assessing a person's thyroid status, the most important indicator is always symptoms that occur more frequently with hypothyroidism than otherwise.  So were you having any symptoms before the reduction in med dosage?  Also, please post the reference ranges shown on the lab report for the T3 and T4 results.  Also, hypo patients are frequently deficient in Vitamin D, B12 and ferritin.  If tested for those, please post those results.    Also from the paper you can note that Vitamin D should be at least 50 ng/mL  B12 in the upper end of its range, and ferritin at least 100.