Low Free T3 - symptoms?

[bessygo]

I finally had Free T3 tested with TSH labs. After being upped to .75 mcg Synthroid, my labs were TSH: 2.29, T4 Free: 1.3, T3 Total: 102;

HOWEVER, my T3 was at the low end of the range: 2.5. My endo dr. offered to give me more T3 but said, " Both the T3 and the higher doses of Synthroid could make your symptoms of insomnia and anxiety worse". I can't find any info on what symptoms of a low Free T3 score means. My calcium, D, etc were fine. Any thoughts?

[Suffolklady]

Hi there. I’m new to this site. Is the T3 test part of a normal thyroid test. My thyroid is only slightly out of kilter so I take levathyrizine but I feel lousy and have done for a long long while. Tiredness is quite overwhelming but on every thyroid test I’m told it’s all okay. I have only just read about the T4 and T3 and the fact the lack of absorption can affect the way we feel. I also read that the T3 drug is so expensive that they NHS is having to think twice about prescripting it? I too would be interested in what the symptoms are as well bessygo.

[greygoose]

Low T3 symptoms are hypo symptoms - fatigue, hair loss, dry skin, weight-gain, etc. That's what hypo is: low T3. But, we can't tell you if your FT3 is too low because you haven't given us the ranges.

[silverfox7]

As Greygoose says, the ranges are so important as they differ from lab to lab so we need to see yours or otherwise we could be guessing!

As an example my local hospital upper level for FT3 is 6.8 but I go a bit further afield and there upper level of FT3 is 5.7 so a huge difference!

[SlowDragon Administrator]

Many of us find taking T3 improves sleep

Anxiety is a hypothyroid symptom

Important to test vitamin D, folate, ferritin and B12

These are often too low. They need to be at good levels for thyroid hormones to work

Low vitamin D and low B vitamins can contribute to insomnia

drgominak.com/sleep/vitamin...