I am a 35 year old male. 6 foot and 72 kg - on the skinny side yet with a reasonable under skin water retention. I have been hypo since I've been a kid. I have optimised my levels of ferritin, folate, vitamin B12 and vitamin D optimised as per some posts here. I am now trying to optimise my NDT.
What I would like to do here is to revalidate my knowledge in how I know when I have arrived at my "optimal" level.
While on equivalent of 2.5 grains my thyroid results were:
FT4: 13.2 pmol/L ( 12.8 - 20.4 ) - 5% through the range
FT3: 5.4 pmol/L ( 4.0 - 6.8 ) - 50% through the range
TSH: 1.5 mIU/L (0.40 - 3.80 )
I have also measured my heart beat at rest over a couple of days, which averages to around 55 bpm.
I have over the years tried measuring my body temperature (orally with a non-digital thermometer), but I found it quite a difficult process with a lot of fluctuations (3 times per day between drinks, meals, exercise and keeping the thermometer in for at least 5 minutes). So I'm trying to stick to things that are more consistent and relatively easy to measure.
I am still far from optimal, but better than I once was. I have now switched to 2.75 grains 3 weeks ago and anticipating switching to 3 grains and possibly 3.25 in the future (waiting 8 weeks in between switches and blood tests).
Right now, what I think I know is this. My FT3 should be 75-100% through the range. The other figures are of nearly no importance, but it's likely my FT4 will rise from where it is now to somewhere under 50% through the range. TSH is likely to go become suppressed (under the range). My heart beat should go up to 60-80 bpm. In my case I'm hoping to get at least another 10 bpm above where it is - so 65 bpm, but optimally perhaps 70 bpm.
It goes without saying that I'll be monitoring all my hypo symptoms for improvement, but it's quite difficult to remain objective in trying to measure those.
So what I would like to ask here is could you please validate my measurable targets above. Any comments much appreciated!