Power of Hormones imbalances are missed if both the TSH and Free T4 are not monitor. Do not accept the answer, "Your thyroid is fine". Make sure that both tests are within normal range** and** that the levels are normal relative to each other. Relative to each other means that both should not be low. If one is low, then the other should be high. Because of this proportional relationship, the so-called reference ranges can be misleading especially when monitoring thyroid function. Rushed doctors can be easily mislead and miss thyroid imbalances.

https://www.youtube.com/watch?v=cqTANY3-yNI