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High T3, normal T4 and TSH

Hello,

A while back my company did a free blood analysis for its employees. Mine came back with some concern about my thyroid. Turns out I have a consistently elevated free t3, but TSH, and t4 are consistently normal (3 tests in 1 year).

TSH: 1.21 (0.2--4.5)
T4: 1.2 (0.8--1.8)
T3: 5.6 (2.3--4.2)

I just visited an endocrinologist who said she's never seen anything like this, as the normal combination is a low TSH with a high free t3, and there's nothing to be done, despite my having a few mild to medium symptoms (e.g. insomnia, fatigue, anxiety, hard hb, muscle twitches, et. al.).

I'm wondering if I should heed her advice and monitor my TSH level or find a doctor who will treat me for my symptoms.

Any thoughts and insight would be greatly appreciated.
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Avatar universal
Thanks for your thoughts, Stella. I'm still not quite sure what to think...someone else suggested T3 toxicity, but I'm not sure. By chance do you know what a reverse T3 test covers? Again, any help is appreciated!

Many thanks!
Helpful - 0
393685 tn?1425812522
Wow it is odd on the high Free T3 and the moderate normal TSH. Usually someone in this position won't have a bottomed out TSH like around a .3 or lower.

The Free T3 in the higher levels may be the reason why you feel those symptoms. By chance have you been losing a bit of weight?

I'm lost too - I really can't say for sure - I don't think meds may be a treatment for you.

Would the endo consider a Reverse T3 test. maybe that would indicate something.  Not sure but it;s just a blood draw again.

Helpful - 0
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