I think there are lack of responses because the numbers are confusing. For example, what I have (test reading) is for TgAb: 47 IU/ml with the range being from 0-40. Obviously somewhat elevated.
Obviously in N.Z. there test is different?
I looked at your profile and considering what you've been through, your doctor should be more than willing to discuss your lab results with you. I would write down a few questions/concerns and bring them with you to your next appointment. You need to be "in the know.
Best to you!