My TSH is 16.1, but my T3 (1.31) and T4 (8.02) are within the normal range. Surprisingly, I am underweight at 56.5 kg with a height of 172 cm. The other symptoms of hypothyroidism also do not match the high TSH results, whereas symptoms of hyperthyroidism such as tachycardia, anxiety, and sleeplessness are seen. I am confused. What should be inferred here, please?

Answered by 1 Apollo Doctors

Dr Ezhilarasan Ml

General Practitioner

MBBS
6+ Yrs

Consult Now

Your TSH is elevated (16.1), but T3 and T4 are normal this is commonly seen in subclinical hypothyroidism. However, your symptoms (like tachycardia and anxiety) are more hyperthyroid like. Id advise repeating TSH along with anti TPO antibodies to clarify autoimmune thyroiditis.

Dr. Ezhilarasan Suggests...

Take a TSH Test (Thyroid Stimulating Hormone) Test or Take a THYROID PEROXIDASE ANTIBODIES (ANTI MICROSOMAL ANTIBODIES) Test

Book TSH Test (Thyroid Stimulating Hormone) Test Book THYROID PEROXIDASE ANTIBODIES (ANTI MICROSOMAL ANTIBODIES) Test

Answered 08/09/2025

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