Hello Dalilafng, Could you just check whether the measurement you've given as T4 is FT4 and is the reading 1.21 with the range (0.76-1.46)? So you've got elevated antibodies which indicates autoimmune thyroid disease otherwise known as Hashimotos. The doc really should have done an FT3 test, especially since you're taking T3. But if as I think your FT4 is 1.21 it's within range and you're feeling well it indicates that your dose is fine. As I understand it, the TSH is irrelevant if you're taking T3 and adequately medicated, it doesn't need to respond so is bound to be low.
I hope others will come along soon with experience of taking T3 and give you a more definitive answer.
Dalilafng When taking T3 it's essential to have FT3 tested. Otherwise you wont know if you're taking enough or taking too much.
No-one can tell you if you should continue taking T3 without seeing your FT3 result.
TSH will generally be suppressed or very low when taking T3.
Did you know that your high antibodies confirm autoimmune thyroid disease aka Hashimoto's which is where antibodies attack the thyroid and gradually destroy it.
The antibody attacks cause fluctuations in symptoms and test results.
You can help reduce the antibodies by adopting a strict gluten free diet which has helped many members here. Gluten contains gliadin (a protein) which is thought to trigger autoimmune attacks so eliminating gluten can help reduce these attacks. You don't need to be gluten sensitive or have Coeliac disease for a gluten free diet to help.
Supplementing with selenium l-selenomethionine 200mcg daily can also help reduce the antibodies, as can keeping TSH suppressed.
TSH will be suppressed when taking any form of T3. FT4 can drop down to halfway and FT3 should be high in the range but never above so it is essential that you get an FT3 test done.
The only time over range FT3 is acceptable is if you have a virus but with viruses it's not always known you have one so the suggestion if FT3 is slightly over range is to retest after 4 weeks to check if back in range. If not you would need to lower your dose.
But as FT3 is the only accurate of then your doctors needs to tell the lab that is what you are taking so they must do the FT3 test.
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results advice and Adding T3
blood test result after adding t3. I desperately need help. This is my only hope. 
Please could I have help interpreting my new results after 6 weeks adding T3 to my Levo? 
Blood results after adding T3
test results - on T3 and T4
