Hi. Not familiar with total T4 readings but your TSH is on the high side and your freeT4 isn't at the top of the range so I would think that there is room to increase your thyroxine. However you say you are improving on a daily basis which is encouraging. Could it be though that you haven't given your last thyroxine increase time to reach its full potential? If not don't rush and possibly send yourself hyper, but if it was some time back I would discuss an increase with your GP
As I understand it, total thyroxine (T4) is what is knocking around, both usable and not usable by your body. Free thyroxine (T4) is actually available to your cells for conversion into T3, which is the stuff that actually does the work. I'm not sure that you really need to know the total thyroxine, but it comes as part of the test package. So your free figures are what is important, and they should be in the upper quarter of their respective ranges. That's my take on it anyway.
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