It’s a common story: you feel exhausted, cold, or moody, but your thyroid test from the GP comes back "normal." Many in the UK struggle with ongoing symptoms, wondering what else could be wrong. But thyroid issues aren't always black and white.
Sometimes, thyroid hormones hover at the edge of the reference range. Even small fluctuations in TSH, FT4, or FT3 can affect how you feel:
Subclinical hypothyroidism or hyperthyroidism means your results may appear normal, but you still struggle with symptoms.
Thyroid hormone needs are individual. Your "normal" may not match the laboratory's range. Factors influencing thyroid function include:
Check out NHS Hyperthyroidism Guidelines for more on how symptoms can vary.
The at-home thyroid function test from Mayfield Clinic lets you monitor FT3, FT4, and TSH at times that suit you. Spotting patterns – such as slow rising TSH or dips in FT4 – can give you and your GP useful information to guide further action.
Buy an at-home thyroid kit to track your levels conveniently—or learn more about what’s included. Prefer to see a doctor? Book an in-person thyroid test or consultation at Mayfield Clinic for tailored support.
Some people develop symptoms such as fatigue, hair loss, irregular periods, weight changes, or mood shifts even when their thyroid levels fall within the 'normal' range. Subclinical thyroid dysfunction means your hormone levels are slightly off but not enough to trigger a clinical diagnosis. Monitoring your thyroid with home testing kits enables you to track subtle changes and share results with a doctor.
Thyroid levels can fluctuate over time due to illness, medication, stress, or life changes like pregnancy. Regular testing (every 6-12 months or as recommended by your GP) can help spot trends and catch problems early.
Yes! The home thyroid function test from Mayfield Clinic checks FT3, FT4, and TSH – the critical hormones for identifying common thyroid problems. However, if your test flags abnormal results, a GP may recommend further investigation or different tests.
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3rd Floor Mayfield House
256 Banbury Road
Oxford
OX2 7DE
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