Hi, Kenzy! I have thyroid problems, too. Didn't I see you on the Candida board?
I have hypothyroidism, candida, fibromyalgia, and osteo arthritis/degenerative disc disease in my back and neck. Otherwise, I feel just peachy!!! I am finding that the low carb (since Dec 26, 02) is helping everything! It took awhile, and I felt worse before I felt better. I haven't lost much weight yet, but I am getting healthier, the weight might decide to come off later.
Your doctor was very thorough. Do you have migraines? That could be why she ordered the CT scan of your head.
If your tests come back normal, don't despair! My tests always come back normal (I am on meds, tho), and I used to still feel like "crap". But now that I am getting the yeast under control, oh, I am feeling so much better! I think the yeast was more of a cause of my problems than the thyroid. Of course, there are some schools of thought that candida causes thyroid trouble. I tend to buy that theory. Eating healthy is the most important thing.
Don't give up. You were wise in asking your doctor to perform all the tests possible. You are taking charge of your own health, and that is important! I have come from the depths of despair over health issues, and I can guarantee you, you will get better!
Eat your veggies, protein and drink lots of water. Just eating low carb, healthy low carb, is the best direction you can take.
Good luck to you, keep in touch. Drop by my journal and let me know how things are going!
-Jess