Is Fatigue, Weight Changes or Brain Fog a Sign of Thyroid Problems? Understanding Thyroid Symptoms in Everyday Life

Is Your Tiredness, Weight Gain or Brain Fog Trying to Tell You Something?

Are you exhausted despite a full night's sleep, struggling to lose weight, or feeling unusually forgetful? Before you chalk it up to stress, diet, or age, consider your thyroid. In the UK, problems with thyroid function are surprisingly common and can slip under the radar for months.

At Mayfield Clinic, we help you get answers fast with our Thyroid Function Home Blood Test Kit (FT4 & TSH).

What is Your Thyroid, and Why Does it Matter?

Your thyroid gland is a butterfly-shaped organ in your neck that plays a vital role in regulating your metabolism, mood, and energy. When it's not working correctly – either too slow (hypothyroidism) or too fast (hyperthyroidism) – you might experience:

• Persistent fatigue or trouble sleeping
• Weight gain or loss without clear reason
• Changes to your hair and skin
• Feeling down or anxious
• Brain fog or difficulty concentrating

It's easy to mistake these symptoms for other everyday issues. That's why testing is so important.

How Does a Home Thyroid Test Work?

Gone are the days of waiting weeks for NHS referrals and appointments. With the Mayfield Clinic Thyroid Function Home Blood Test Kit, you simply collect a finger-prick blood sample at home using our easy TDL Tiny self-collection kit. Pop it in the prepaid envelope, and get your results in just one day. Or, if you prefer, book an in-person blood test at Mayfield Clinic.

What Else Can You Do to Support Your Thyroid?

• Eat a balanced diet rich in seafood, eggs, fruit, and veg (for iodine and selenium)
• Cut back on highly processed foods
• Manage stress through yoga, walking, or meditation
• Get regular exercise suited to your energy levels

While lifestyle changes help, only a blood test can confirm if your thyroid is the culprit.

When Should You Test?

If you experience ongoing tiredness, unexplained weight changes, or mental fuzziness, a simple home test can provide valuable answers. Learn more and order your kit here, or book a clinic appointment if you'd rather see a GP in person.

For more information on thyroid symptoms, see NHS information on hypothyroidism (underactive thyroid).