This has been mulling around in the back of my head and one thing comes to mind. Most thyroid experts and at the moment I'm thinking about Barb
http://www.tiredthyroid.com/cv.html
Puts a lot of emphasis on FT4 levels. In your case 50% is 1.3 and you are 1.1. Barb has some stories about people who were a little low on T4 and it caused them problems. Not sure if you have her book. Perhaps you might try raising your FT4 a little and see what happens. Most tend to believe that T3 is the only concern but she's the one who states they are both important. If your body temp is low in the morning (it means you do have a thyroid issue) then you have further reasons to try it. If that doesn't work you may just need more T3.
Remember before 1973. Before the TSH test, the only way doc's determine thyroid was symptoms and body temperature and to that they would dose you NDT until you felt normal. Ever since the TSH test came out (Hospitals administrations best friend and cheapest way out) many people have had undiagnosed thyroid issues. Also for a good read when the TSH test came out the many people who were on NDT complained because MD's started reducing their NDT because of the TSH test results and this is still an ongoing issue. I don't think you can beat the old way of body temp and dosing until you get your temp normal. There are many books on this. So unless you've tried it you won't know. Never trust the labs for thyroid.
This is a video that shows why labs don't help thyroid. A great vid. https://www.youtube.com/watch?v=XEB_rGOWsGU
