I hope you find the cause of your anxiety. I know it's frustrating and difficult to deal with. That's one of my chief complaints.
I agree with you that people around here have been great!
It really is hard when you have doctors clinging on to the first easy solution they can find......meds for anxiety and/or depression. Granted, some people need them, but because some have illnesses for which depression and anxiety are symptoms, a doctor who makes that assumption and doesn't look for medical causes first is dangerous.
If your thyroid comes back normal with no antibodies, there are other things you might look into being screened for to be on the safe side.
Keep hanging in there. You're doing the right thing to get yourself information and to take some control over your own health.