Over and over, I hear people discount the importance of checking reverse T3 when looking at a thyroid panel. I can’t overstate, especially for people already on thyroid medications, reverse T3 is of the utmost importance. It helps differentiate if your medication is working for you or against you and can explain persistent thyroid symptoms, despite TSH looking “normal.” Be sure to talk with your clinician about checking this lab at your next thyroid appointment and if they won’t, it may be time