A member asked:

My tsh is 0.2 which doctors are happy with as i have a history of thyroid cancer. but could this low tsh be causing my brain fog?

A doctor has provided 1 answer
Dr. Katharine Cox answered

Specializes in Pediatric Emergency Medicine

Thyroid supplement?: If you are taking a thyroid supplement have your doctor check your free T3 (liothyronine) and 4. This will make sure you have proper thyroid replacement. This is important for just about any metabolic function.

Answered 8/18/2014

3.8k views

Thank

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