What's the reference range for the T4; and is that FREE or total? If the lab report doesn't specifically say "free", then it's total and pretty much obsolete/useless.
That said, with the T4 as low as it is, I agree with Laura, that you are under medicated.
Would be great if you can get your doctor to test FT3, along with the TSH and FT4; and always make sure you get a copy of your lab report for your own records; your doctor is required to give you one, upon request.