Re: T3 levels
No, doctors don't test because they don't think T3 is important.
It would be nice if all doctors tested for T3 every time labs are drawn, but they do not. I think a realistic expectation would be that if patients are still complaining of symptoms related to a thyroid imbalance, doctors should order Free T3 tests to see how much of the hormone is in the body. I feel MUCH better with some additional T3 added to my T4 -- however, I do believe I could feel even better. It's a struggle & the bottom line is it depends on HOW YOU FEEL. If you are feeling good, I would move on and leave it alone unless I started feeling bad. On the other hand, if I feel down, depressed, tired, lethargic, cold, foggy in my head, anxious, etc., I push to have all of my thyroid hormones checked & treated.