Good morning my latest test results say my TSH is 0.02 mu/ l (0.27-4.20)
TSH was 0.11 sept 21!
T4 16.7 pmol (12-22) Nov 21
T4 16.2 pmol (12-22) sept 21
I am currently on a dose of 75mcgs levothyroxine
Is this dose too high? I deffo feel better than last year ( maybe I am subclinical)?
Kind regards
Subclinical what? 
No, your dose is not too high, because your FT4 is only 47% through the range. Which means that your FT3 will be slightly lower. And, you are only over-medicated if your FT3 is over-range, you are not likely to be over-medicated. TSH is a very bad indicator of thyroid status, despite what doctors think!
Just testing TSH and Ft4 is completely inadequate
Never agree to dose reduction based just on these results
(GP likely to want to reduce dose as TSH is low)
Do you always get same brand levothyroxine at each prescription
What vitamin supplements are you currently taking
Do you have autoimmune thyroid disease also called Hashimoto’s diagnosed by high thyroid antibodies
Bloods should be retested 6-8 weeks after each dose change or brand change in levothyroxine
For full Thyroid evaluation you need TSH, FT4 and FT3 plus both TPO and TG thyroid antibodies tested.
Very important to test vitamin D, folate, ferritin and B12 at least annually
Low vitamin levels are extremely common, especially with autoimmune thyroid disease (Hashimoto’s or Ord’s thyroiditis)
Low vitamin levels common as we get older too
Recommended on here that all thyroid blood tests should ideally be done as early as possible in morning and before eating or drinking anything other than water and last dose levothyroxine 24 hours before test
This gives highest TSH, lowest FT4 and most consistent results. (Patient to patient tip)
Private tests are available as NHS currently rarely tests Ft3 or all relevant vitamins
List of private testing options
thyroiduk.org/getting-a-dia...
Medichecks Thyroid plus antibodies and vitamins
medichecks.com/products/adv...
Blue Horizon Thyroid Premium Gold includes antibodies, cortisol and vitamins by DIY fingerprick test
bluehorizonbloodtests.co.uk...
If you can get GP to test vitamins and antibodies then cheapest option for just TSH, FT4 and FT3
£29 (via NHS private service ) and 10% off down to £26.10 if go on thyroid uk for code
thyroiduk.org/getting-a-dia...
NHS easy postal kit vitamin D test £29 via
I read your detailed reply and had a question. If one was taking Levothyroxine post thyroid removal, should the dose be delayed until after the morning blood test or is that just messing up what the replacement thyroxine is doing? Confused, I am!
Yes you should leave 24 hours between last dose levothyroxine and testing
So if you take levothyroxine in morning, simply delay until after test
ALWAYS test as early as possible in morning before eating or drinking anything other than water
NHS England Liothyronine guidelines July 2019 clearly state on page 13 that TSH should be between 0.4-1.5 when OPTIMALLY treated with just Levothyroxine
Note that it says test should be in morning BEFORE taking levothyroxine
Also to test vitamin D, folate, B12 and ferritin
sps.nhs.uk/wp-content/uploa...
Thank you very much 😍
If you feel well then the dose is perfect; if you don’t feel optimal and still have symptoms then you have room for an increase. I’d get full tests done privately before doing so though - Medichecks or Blue Horizon or other - because you really need to see your T3 along with t4 and tsh for full picture. If testing blood, get blood drawn 24 hrs after last dose Levo and a week away from vitamins containing biotin.
Latest blood results
Latest Results
Could somebody help me to interpret my blood test results?
Help with latest results 
