Sounds like you need an endocrinologist-but maybe an internist can help out. I would first start here:

http://thyroid.about.com/mbody.htm

And read all I could about the thyroid. .05 is a little on the low side, but I think it is still considered "normal". Maybe you could also hit WebMD and see if you can find anything there.

http://my.webmd.com/webmd_today/home/default

Write down all the symptoms you can think of, get copies of your blood work (for the last couple of years if you can) to take with you and hit those websites-arm yourself with as much info as you can. Is there anyone that could go with you? A friend, a nurse you know?