I have just returned from my Endo visit and asked her why I should continue to take T4 along with T3 meds when I’m certain it does nothing to improve my symptoms. She drew me a nice little diagram explaining that some cells in the body need T4. Anyone else ever heard of this? I have just had bloods taken and although my last ones showed very low FT4 and Just over half way up the range of FT3 she is reluctant to increase T3 until I have a bone density scan. I have just had it. I have told her that regardless of the bone scan results I am not giving up T3 meds. Why does there seem to be no consistency in what these folk utter? I can see self medication looming.