My results were normal but I still feel awful.
Worth looking at what was actually measured rather than the word "normal".
Three things explain most of these. The panel was incomplete — thyroid antibodies, ferritin, B12 and vitamin D are frequently not included. The result was inside the range but not optimal for you. Or it is something else entirely — sleep apnoea, depression, perimenopause and coeliac disease all present identically.
Bring the actual numbers, which is why we ask for results rather than a summary.
Why do I have to wait six to eight weeks between thyroid tests?
Because TSH takes that long to settle after a dose change. A test at three weeks gives a number nobody can act on — and frequently prompts a dose change that was not needed.
It is the commonest reason titration goes wrong, and waiting is genuinely the faster route to the right dose.
What is prediabetes and does it matter?
It matters a great deal, and it is the most useful result on this page. It means blood sugar is above normal but below the diabetes threshold — a warning with a window still open.
The NHS Diabetes Prevention Programme is free and genuinely reduces progression. Ask about it rather than being handed a number and left with it.
Should I have my thyroid antibodies checked?
Yes, and they are frequently omitted. They tell you whether this is autoimmune Hashimoto's and therefore likely to progress — which changes how a borderline TSH is interpreted.
My TSH is slightly raised but T4 is normal. Do I need treatment?
Not always, and we will say so rather than treating a number.
Treatment is generally warranted with a TSH above 10, with positive antibodies, with symptoms, or in pregnancy. Otherwise monitoring is often the better answer.
Can I have T3 or natural desiccated thyroid?
T3 is a real option for the minority who remain symptomatic on levothyroxine alone — but it is specialist-initiated in the UK, so we refer.
Desiccated thyroid extract we do not prescribe. Unlicensed in the UK, hormone content varies between batches, and not recommended by the British Thyroid Association.
Before either, it is worth being sure the dose is optimised, the timing is right, and iron, B12 and vitamin D are adequate — which resolves a good number of cases.
I am pregnant and on levothyroxine.
Tell us immediately, and never stop it. Requirements rise by around 25–50% in early pregnancy and the dose needs increasing promptly — which is frequently missed, and untreated hypothyroidism in pregnancy carries real risks.
Is my weight a hormonal problem?
Sometimes, and it is worth excluding rather than assuming either way. Underactive thyroid, PCOS, sleep apnoea and Cushing's all affect weight, and several common medicines drive weight gain — some antidepressants, antipsychotics, insulin, steroids.
Those are all findable, and a medication review costs nothing.
Should I take vitamin D?
Everyone in the UK is advised to consider 10 micrograms daily between October and March, and year-round for people with darker skin or limited sun exposure. It is cheap and sensible.
High-dose supplementation without testing is not — vitamin D can be taken to excess, unlike most vitamins.
Do I need a full private health screen?
Often not, and that is worth saying before you buy one. Broad panels in people with no symptoms produce incidental findings that generate anxiety and further tests without improving anything.
Targeted testing guided by your symptoms and risk is more useful and costs less.