Feeling tired, gaining weight, losing hair, or struggling with brain fog can all point to thyroid problems. But many women are told their thyroid is “fine” based on just one test. That’s not enough. To truly understand thyroid symptoms, the right tests must be done.

Most Doctors Only Test TSH


TSH stands for Thyroid Stimulating Hormone. It’s the most common thyroid test, but it doesn’t give the full picture. TSH only tells how the brain is talking to the thyroid. It doesn’t show how well the thyroid is working, how hormones are being used, or if the immune system is causing problems.

A Full Thyroid Panel Is a Must


To truly understand thyroid symptoms, a full thyroid panel should include:

• TSH – Tells how the brain signals the thyroid.

• Free T3 – The active hormone that powers energy, mood, and metabolism.

• Free T4 – The hormone made by the thyroid, which gets turned into T3.

• Reverse T3 – A “blocker” hormone that can slow the body down if too high.

• Thyroid Peroxidase (TPO) Antibodies – Checks for Hashimoto’s, an autoimmune thyroid disease.

• Thyroglobulin Antibodies – Another marker for thyroid autoimmune conditions.

Testing for More Than Just the Thyroid


Sometimes thyroid symptoms aren’t just about the thyroid. Hormones, gut health, stress, and nutrition all play a part. That’s why a good doctor may also check:

• Cortisol levels – High or low stress hormones affect the thyroid.

• Sex hormones – Imbalances in estrogen or progesterone can mimic thyroid issues.

• Nutrient levels – Low iron, vitamin D, or selenium can stop thyroid hormones from working properly.

• Gut health – Inflammation or poor digestion can slow down thyroid function.

The Right Doctor Will Look at the Whole Picture


A full thyroid panel, hormone testing, and gut health labs are key to understanding symptoms. Don’t settle for basic labs. Work with a doctor who looks deeper and builds a plan just for you.

Functional medicine providers don’t stop at surface-level answers. They run deeper tests to find out why someone feels off, and how to help the body heal. This kind of care brings clarity, confidence, and a plan that actually works.

Real healing starts with the right testing and the right support.