Originally Posted by miller01
Can you have normal T4 levels and a high T3? Is there such a thing as having hypo due to t4 levels and hyper because of t3? Maybe that is why I am having my hands go to sleep (numb) at night....too much t3? If this is possible I wonder how it would be treated....
Well, Generally speaking, it is more common to be hyper on T3 than T4. Usually, if your T3 is too high, your T4 production drops due to the hypothalamus and pituitary seeing too much thyroid hormone and lowering your TSH.
When this happens, you may have some hyper symptoms fomr the T3 being over the top, but still have hypo symptoms because T4 is too low and some symptoms simply cannot absorb T3.
If you are hyper due to Graves, the best bet is thyroid gland ablation or removal. OUCH.
If you are hyper because of Anti Thyroglobulin antibodies, this is usually transient and should eventually pass, but will likely come back in waves, too. In either case, anti-thyroid meds can be prescribed as a temporary measure--sometimes even permanently, though this is unusual, as far as I know.
Sometimes a block and replace methid is used where you take an antithyroid med to lower your thyroid gland's activity. What these meds do is reduce your T4 to T3 conversion, AND lower your T4 production. Then, to make up for any lack of thyroid hormone this might cause, you can take a thyroid medication to bring T3 and or T4 up to where they should be.
If you are hyper due to too much meds, reduce you rmeds and re-check in two weeks if you reduced a T3 med and 6 weeks if you lowered your T4.