You left out a very important test, Free T3. Your Free T4 tests tells you how much stored hormone you have, but then your body converts it into useable hormone that runs through your body like gasoline runs to a car engine. You need to find out what your Free T3 levels are. You might be like many people and your body does not properly convert stored hormone to useable. That's me. I had to go on natural treatment.. Armour, which has both T4 and T3 in it. It changed my life. I felt the difference in ONE day! I have my life back after wasting 22 years on 8 MDs, 3 of which were endocs and not a ONE OF THEM did the right tests or gave me the right treatment. I had to find my very wise MD on the Thyroid Top Docs List. Google it.