I don't know how you felt with a TSH of 3.5 for three years. If we were in another country and had a TSH of 3+ we'd be diagnosed as being hypothyroid, so maybe you weren't on a proper dose then or your body is absorbing levothyroxine better now. Doctors try to frighten us by saying a very low TSH is dangerous, i.e. heart or osteo but that isn't true as many who've had thyroid cancer have to have a very low or suppressed TSH.
When our T3 and T4 are flagging the TSH (from the pituitary gland rises) so I don't think there's any need to worry. However, this is another link:-
Do you have your blood drawn at exactly the same time - the very earliest possible?
Do you fast before it (you can drink water) and do you leave 24 hours gap between your last dose and the test? This is the best procedure for drawing blood.
If we had our blood drawn ten times in a day it would be different each time. The TSH is highest earlier in morning and it drops throughout the day.
The main question is 'how are you feeling? Good? Not so good? or very well?
I am glad you follow a good routine for your tests . The fact you are feeling well is very good.
As you were concentrating on your TSH that's what I've mainly responded too. I've now looked at the rest of your thyroid hormones FT4 is very high but FT3 is just over range.
I am not medically qualified but I'd make an appointment to see your doctor/endocrinologist who should be knowledgeable.
Your antibodies are very high so you have Hashimoto's the most common form of hypothyroidism. Going gluten-free can help reduce the attack on your gland.
No it will not affect you but it looks as if you are hyperthyroid at present and as others on this thread believe that you are having a 'flare-up' due to such high antibodies.
If you eat gluten-free food it should help to reduce the antibodies.
You could be having a large Hashis flalre which releases lots of hormone into the blood stream, making your TSH low and your Frees high. If so, it should stop soon and, when it does, you might need an increase in dose as more of your thyroid will have been destroyed. For now, you might feel more comfortable with a slight dose decrease.
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