Hi. My gp surgery only tests for TsH. After insisting my t4 was checked these are my resume
TsH 9.9
T4 13
Historically had low ferritin and b12
What should I do as the GP said to increase my levothryixine? Unhappy as I don’t know what these results indicate?
Please advise
Unfortunately T4 means nothing without the range. One place place may have a range of e.g. 14-19, and another could have e.g. 5-12, and your result of 13 would indicate completely different things depending on which range.
With a TSH of 9.9, I think it's fair to say you need a dose increase though. TSH should ideally be around 1.
Your TSH shows that you are undermedicated. It's not possible to comment on your FT4 result without it's reference range(ranges vary from lab to lab).
The aim of a treated hypo patient generally is for TSH to be 1 or lower with FT4 and FT3 in the upper part of their ranges if that is where you feel well.
Your GP is right to offer you an increase in your dose of Levo, 25mcg now, retest in 6-8 weeks, repeat increasing and retesting every 6-8 weeks until your levels are where they need to be for you to feel well.
"Historically had low ferritin and B12"
Are these being addressed?
What about Vit D and Folate?
Have you had thyroid antibodies tested, do you have Hashimoto's?
Hi. Had vit d checked in the past but not folate. Just concerned as 9.9 seems very high and I’ll like to know why it’s more than doubled in 6 months?
Thanks
Have you been tested for antibodies to see if there is an autoimmune issue?
What is your current dose?
* What is the range for your FT4 result?
* What are all your vitamin results and what, if anything are you supplementing with?
* Have you had thyroid antibodies tested and do you have Hashis - the answer to this question could possibly throw some light on why your TSH has risen.
How much Levothyroxine are you currently taking?
The aim of Levothyroxine is to increase the dose slowly in 25mcg steps upwards until TSH is under 2 (many need TSH significantly under one) and most important is that FT4 in top third of range and FT3 at least half way in range
NHS guidelines on Levothyroxine including that most patients eventually need somewhere between 100mcg and 200mcg Levothyroxine.
nhs.uk/medicines/levothyrox...
Also what foods to avoid (eg recommended to avoid calcium rich foods at least four hours from taking Levo)
Your GP is correct you need 25mcg dose increase in Levothyroxine and blood retested 6-8 weeks later
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 .
Last dose of Levothyroxine 24 hours prior to blood test. (taking delayed dose immediately after blood draw).
This gives highest TSH, lowest FT4 and most consistent results. (Patient to patient tip, best not mentioned to GP or phlebotomist)
Important to test vitamin D, folate, ferritin and B12 on Levothyroxine frequently need supplementing to maintain optimal levels
What vitamin supplements do you currently take
Why have you not answered fully those who have taken the trouble to reply?
Because I haven't had time yet
Nor time to digest the replies. Why are you even bothering to comment?
Tsh undetectable and over 60
Fluctuating TSH/Treatment with TSH of 3.5
TSH after RAI treatment. 
What does undetectable TSH mean? 
Why my tsh is not improving?
