Where do you need your ft3 levels to feel good? - Thyroid UK

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Where do you need your ft3 levels to feel good?

Clara9 profile image
12 Replies

Those of you who now feel good where in range do you need your free t3 levels?

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Clara9 profile image
Clara9
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12 Replies
bantam12 profile image
bantam12

Mid range or very slightly higher.

Clara9 profile image
Clara9 in reply tobantam12

Thanks, so you feel over medicated if it goes higher? I'm trying to figure out where in range I feel best...

bantam12 profile image
bantam12 in reply toClara9

Not really, I just prefer it not to be higher than necessary.

ThyroidObsessed profile image
ThyroidObsessed in reply tobantam12

Whats classed as mid range then?.. the range for ft3 in my area is (3.1- 6.8)

Mine is 4.6

Thanks

SilverAvocado profile image
SilverAvocado in reply toThyroidObsessed

Mid range would mean the exact middle of the range, for yours it is 4.95.

People will be speaking a bit more roughly than that, so anything in the general area coukd be mid-range. Generally it's preferable to be above it than under it, so yours is on the low side.

Joesmum profile image
Joesmum in reply toThyroidObsessed

You see that’s very interesting because if mine were that ‘low’ I wouldn’t be able to get out of bed.

We’re all so different.

Clutter profile image
Clutter

Clara9,

I've felt well with FT3 4.5 - 8.4 but my hair started coming out in clumps at 8.4 and stopped shedding when I reduced dose and FT3 was back in range. I didn't feel better or worse for the dose reduction.

Nutripea1220 profile image
Nutripea1220 in reply toClutter

It’s so annoying the way just one symptom can be out of range (hair falling out) whereas everything else doesn’t feel better or worse. My doctor explain that all these systems are on different tracks - hair loss, racing heart, cold feet, dry skin, constipation. Some people will fix 8/10 symptoms on one dose and if they increase to Fox the remaining to, one or two others will go into hyper mode, so it’s a question of finding the ‘best’ balance. Ugh.

Nutripea1220 profile image
Nutripea1220

I know I’m different than most but I feel best with freeT3 around 17-18 (it has been as high as 28). I see two excellent doctors who both want it that high- so am under their supervision. I sought the second opinion because it is so unusual and doubted my first doctor. Apparently I don’t absorb T3, was a poor converter, and those levels are just blood Serum levels —not what’s in my cells (otherwise I’d be dead!). Sharing my unusual case lest anyone else out there also be struggling with something similar. It’s not fun being ‘the only one’. I have very thick long hair, no side effects (I’m on 200mcg T3 only). I worry all the time though because my dose is so high. But all My vitals are now (finally) normal.

For me 5.6 I'm in UK so top of range is 6.5. 😃

helvella profile image
helvellaAdministrator in reply to

Ranges vary by lab rather than country. 😀

in reply tohelvella

Yes, the same lab I use is in Merseyside 2.5 to 6.5

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