T Nation

Thyroid Confusion

Hi, Ive read the articles about Thyroid and body temperatures.

It has left me a little confused as my morning and afternoon body temperatures are low suggesting my Thyroid is under active but my blood results say my Thyroid is functioning fine.

I also had a hair mineral analysis done and this also reported that I may be suffering from a under active thyroid and that my metabolic rate is slow.

Ill post temperatures and Thyroid panel and TRT dosage

Morning and afternoon temps are up and down, over the course of the week some are as low a 35.75C all the way to 36.29 when waking

Afternoon has been as low as 36.5 up to 36.92.

I take iodine and selenium supplements (started recently)

My Thyroid panel -
TSH 1.62 0.27-4.20
Free Thyroxine 15.100 12.00- 22.00
Free T3 4.96 3.10 - 6.80
Antibodies are all negative for auto immune

Test E 50mg every 3.5 days

So I’m confused, Why would my body temperature still be low even tho my bloods say I’m good?

My libido is low and I have energy but I am not 100%

Thanks for reading

Reverse T3?

I was thinking that could be a possibility, Unfortunately the test didn’t include it but I can get one done this week

TRT also plays with thyroid levels and thyroid is not the only factor in body temp - estrogen and low dietary fat plays a role too

Reverse T3 blocks Free T3, if Reverse T3 is high then it would negate a portion of that Free T3.

Ferritin is needed for thyroid function, no cortisol testing either.

Provide SHBG levels, this can be critical for choosing the proper TRT protocol.

Ferritin is - 113 ug/L 30.00 - 400.00
Cortisol morning 382.000 nmol/l 166.00 -507.00
SHBG - 24 nmol/L 18.30 -54.10

My thyroid numbers look great in the absence of RT3 testing which shows elevated levels and yet TSH is less than 1.0 which is considered perfect. TSH isn’t always a good indication of thyroid status and some people have normal thyroid labs and thyroid dysfunction is present.