I was just looking over her most recent blood work, and decided to search the Internet for the meanings of some of the tests. I came across the T3 vs
. T4 and TSH discussions on several sites; never knew there were all of those components. In reading some of the symptoms of low T3 levels(difficulty losing weight despite daily exercise, always cold, headaches, sinus issues, etc.), almost every one is applicable to my wife, and has been for a long time.