Hi,
Seems after 20+years of being on levoxyl,it has quit working,my tsh is 15 after bumping up my dose from 100 to 112.I feel terrible,having anxiety problems,chest discomfort,heart is pounding and my arms ache.the endo I see is really good and is switching me to armour.Why am I not converting the t4 to t3 anymore?And is this the best thyroid pill to switch to?