Please could you tell me more about T3 especially this: if I reduce my dose of Levothyroxine, will T3 go up or down? My thinking is that if my body fails to convert synthetic T4 to T3 then lowering the dose might mean my body produces more natural thyroxine. Or could it be the other way round, that my body needs an even higher dose of Levo because little is converted?
(I'm on 75 mcg of Levo weekdays, 50 mcg at weekends).
Latest results Feb 2016 are:
T4 18.3 (range 10 - 24.5)
T3 3.9 (range 3.8 - 6.7), "normal"
TSH 0.07 "slightly suppressed". (Range I think is 0.05 - 5 or 7)
Ferritin 15 (range 12 - 300)
(now taking prescribed Ferrous Fumarate) and
Ferritin has risen to 34.
In December 2015:
B12 = 438 (range 180 - 1000), being vegan I supplement though stopped before the test
Vitamin D 50.9 (range over 30-40)
Folate 20+ (range 4+)
Calcium 2.26 ("good")
History is that I became hypothyroid between the ages of 12 and 15 though unrecognised until I was about 45, once diagnosed GP easily traced it back from symptoms.
My results go up and down more than I can show for lack of test results, but if you would please look at Jan 2014 to June 15 you'll see what happens, and I don't feel much different on Levothyroxine. Still suffer from weakness, fatigue (diagnosed as CFS but I don't think so), low mood, low energy, always cold, very poor memory and general brain function and more of the usual symptoms though oddly the reverse of constipation even while taking prescribed iron.
Previous results though I'm sorry I only have 'normal' sometimes and no ranges, I didn't know the value of figures until coming onto this site.
"TFT down to 6.8" guess this means TSH
"TFT 7.3" I guess this meant TSH
"TFT 9.1" - LATER told "TFT 1.9" so I guess this meant TSH 1.9
D3 at bottom of range
TFTs all "normal" (on Levo)
T4 21.1 (range 10 - 24.5 I presume)
TSH less than 0.05
GP recommended pregesterone, which does seem to help.
October 2014 (apparently the GP wrote in my notes she though I was not taking the Levo!)
Thank-you for sharing your knowledge and experience.