
Thyroid Testing in London – Symptoms, Diagnosis & Private Help
By Tharb Faisl
Tired, Moody, or Gaining Weight? It Could Be Your Thyroid. The thyroid is a small gland – but when it’s out of balance, everything from your energy to your mood and metabolism can suffer. If you’re feeling constantly tired, anxious, gaining or losing weight, or having irregular periods, thyroid dysfunction could be the cause.
At Marylebone Diagnostic Centre, we offer private, fast thyroid blood testing in the heart of Central London. Convenient for patients across Baker Street, Harley Street, Marylebone, Kings Cross, Euston, and Paddington.
Book Your Thyroid Testing in London Today!
“I spent months thinking it was stress. The thyroid test confirmed hypothyroidism. Thank you for the quick diagnosis.” – L.R., Camden
Symptoms of Thyroid Imbalance
Many patients are misdiagnosed for months. Common signs include:
Hypothyroidism (underactive thyroid):
- Fatigue and low energy
- Weight gain
- Cold sensitivity
- Constipation
- Depression or low mood
- Hair thinning
- Slow heartbeat
Hyperthyroidism (overactive thyroid):
- Unexplained weight loss
- Anxiety or restlessness
- Palpitations
- Heat intolerance
- Tremors
- Sweating
- Menstrual irregularities
If left untreated, thyroid issues can lead to infertility, heart problems, and long-term fatigue.
What’s Included in Our Thyroid Profile?
We offer:
- TSH (Thyroid Stimulating Hormone)
- Free T4 (Thyroxine)
- Free T3 (Triiodothyronine)
- Thyroid Antibodies (optional add-on for autoimmune thyroiditis)
- Vitamin D – often low in thyroid dysfunction
- eGFR – kidney health can influence hormonal function
- Lipid Profile – hypothyroidism can affect cholesterol levels
- Full Blood Count (FBC) – to assess general wellness
Same-day appointments. Results in 24–48 hours.
Visit Our Clinic Near You
73 Baker Street, London, W1U 6RD
Minutes from Harley Street, Marylebone, Kings Cross, Paddington, and Euston

Private entrance, minimal wait, walk-in friendly.
Complete Thyroid Blood Profile – Only £139
FAQs
Book Your Thyroid Test Today
Stop guessing. Get clarity on your symptoms and feel like yourself again.
📞 Call/WhatsApp: +44 7495 970109
🔗 www.marylebonediagnosticcentre.com
📍 Visit us: 73 Baker Street, London, W1U 6RD