I realize most of you already know this, but I just wanted to reiterate how perfectly stupid it is for doctors to rely on the TSH test. Over the past 6 months, I have finally been able to get my thyroid hormone dose up to a truly therapeutic level. During that period, I told my doctor that we would use FT3 and FT4 (in addition to how I feel) to decide correct dose. I weigh about 76 kg, and finally reached the dose T3+T4=12+112 mcg before testing, which is a bit above my T4-only equivalent full replacement dose. After being on this dose 6 weeks, I tested about 27 hours after my last dose and found:
FT3 4.66 pg/ml (2.77-5.27) (75% up in range)
FT4 1.27 ng/dl (0.59-2.19) (42% up in range)
TSH 0.017 (0.46-4.68)
The frees are perfect, but TSH lies. Fortunately I have a doc who is cooperative and non-authoritarian.