I'm going to see my endo tomorrow. This is a guy who tests only TSH and FT3 & FT4. Luckily I also test with the VA and my GP. So, my question is: I've been taking T4 (again, after quitting for about 2 weeks, in August.) I take 50mcg of T4 and 30mcg of T3 but have recently been self dosing and am up to 75mcg of T4. I did this because the endo I have is part of a medical plan called “Capitation.” It is simply a plan that pays doctors (the insurance company) for prescribing less costly drugs, etc. A fiendish plan born only in the Land of the Free and the home of Donald J. Trump. Anyway, my TSH (taken a week ago) was 0.03, my FT4 was 0.7ng/dL -0.8-1.8 ng/dL, my FT3 was 3.1pg/mL -2.3-4.2pg/mL The test before that was taken a month previously in November but covered much more bloods: TSH--0.03, FT3---4.0 ---2.3-4.2 pg/mL FT4 0.5---- 0.8-1.8 ng/dL TT4: 3.5 ----4.9-10.5 mcg/dL TT3: 137--- 76-181 ng/dL T3 REVERSE: 9 ng/dL ---8-25 ng/dL FERRITIN: 42 ----20-380 ng/mL Vit.B12: 589---200-1100 pg/mL FOLATE: 20.2 ---2-20 ng/mL CORTISOL:18.2 ---10-20 mcg/dL
So, as you can see it appears to me that just as if your FT4 is at top of range and FT3 is at the bottom you're not converting well, if, as in my bloods, the FT4 is bottom of range and FT3 top of range you are converting your T4 to T3, as you should be. I am guessing at this because I understand most on this site appear to feel better when both levels are high. I feel very good at this time but that could change. Also, I have only been self-medicating T4 for the past 3 or 4 months. Anyone who has any knowledge or thoughts on this comment(s) welcome. Oh, and I'm going to ask him to up the T4 from 50 to 75mcg, something he'll love, almost as much as he hates giving me T3.