Hi I recently went to the drs due to extreme fatigue and muscle aches they sent me for a blood test and today I received a text message telling me my thyroid levels were low and I would need retesting in 3 months but no other information and I don't know if I should be concerned 🙈 Serum TSH level < 0.05 miu/L [0.3 - 5.5];
Yes, it could be. TSH being that low is suggesting you might be verging on being hypERthyroid. I say verging on, because FT4 and FT3 being near top of range is why your GP is saying wait to be retested in 3 months to see if those levels go over range.
Thank you for replying and no I don't think so it was mainly Vit D, B12, Blood Count, Liver Function, Ferritin, Urea and Electrolytes and TSH T3 & 4. is testing for thyroid antibodies a routine test?
I’m sorry to say your GP message is wrong. Your thyroid levels (FT4 & FT3) are not low - not even in lower half of range. they are in range.
But they are likely higher than your normal or have been high or are rising.
A TSH (thyroid stimulating hormone) isn’t a thyroid hormone. It’s a pituitary hormone & signals thyroid to increase or decrease production of thyroid hormones. The signal is saying stop - levels are high enough.
Hyper levels can be transient. And can definitely be the cause of fatigue.
Because your TSH is low but FT4 & FT3 are within levels are are classed as sub clinical & the doctor is waiting to see of this is temporary.
3 months is the recommended repeat time but I think it’s too long & if you feel worsening symptoms , Go back. Or carry out a private blood tests retesting thyroid levels which you can opt for a more complete test,eg with thyroid antibodies and key nutrients.
Ask dr to test thyroid antibodies & inflammation markers on next test.
thank u for ur reply what test is inflammation makers?? I definitely don't think see any results that seem connected to the thyroid but they did test other things as well x
2-3 weeks after starting vitamin D, look at improving B12
With serum B12 result below 500, (Or active B12 below 70) recommended to be taking a separate B12 supplement
A week later add a separate vitamin B Complex
Then once your serum B12 is over 500 (or Active B12 level has reached 70), you may be able to reduce then stop the B12 and just carry on with the B Complex.
If Vegetarian or vegan likely to need ongoing separate B12 few times a week
Igennus B complex popular option. Nice small tablets. Most people only find they need one per day. But a few people find it’s not high enough dose and may need separate methyl folate couple times a week
Thorne Basic B recommended vitamin B complex that contains folate, but they are large capsules. (You can tip powder out if can’t swallow capsule) Thorne can be difficult to find at reasonable price, should be around £20-£25. iherb.com often have in stock. Or try ebay
IMPORTANT......If you are taking vitamin B complex, or any supplements containing biotin, remember to stop these 5-7 days before ALL BLOOD TESTS , as biotin can falsely affect test results
In week before blood test, when you stop vitamin B complex, you might want to consider taking a separate folate supplement (eg Jarrow methyl folate 400mcg) and continue separate B12
Post discussing how biotin can affect test results
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Links wanted for articles about the irrelevance of low TSH especially when taking T3 - also odd results!!
Test result help please?: Low TSH and Low T3
Advice need re T3 before hospital appointment 
got my blood results for the last 5 years
