When you post your results (with ranges) could you also please attach the units they were measured in. I ask this because it is possible from FT3 and FT4 to see if you are converting your FT4 to FT3 - but we need to have the units the same to calculate the ratio. If you are not converting the T4 you are taking then this is the reason your T3 is low.
There will then be three things to look into: 1) Get the vitamins and minerals tested that SlowDragon listed (but add a selenium test since this is the catalyst for the T4 to T3 conversion). 2) Look into gut absorption issues, make sure that is not a problem and 3) be kind to your liver since this is where conversion will take place if the thyroid is not performing. Other organs will convert but the liver is the biggy.
Without FT3 result it's not possible to suggest anything. You need to know where in it's range FT3 falls so you can see what your conversion is like and how much T3 to add, if at all.
Your results actually indicate that you need an increase in meds as your TSH is over range, but as your FT4 is only 50% through it's range then there's room to increase Levo for now. But before introducing T3 you must get FT4 and FT3 tested at the same time.
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