My experience has been that the presence of thyroid antibodies can cause some patients to experience a severe whole-body anxiety reaction when attempting to supplement with thyroid hormone. I found that getting rid of my antibodies quelled this problem. The
details of my experience are currently documented at:
ftp://ftp.ucar.edu/era/ThyroidTale.htm
My question is, what is the underlying mechanism of this? Is it because HAIT prevents your body from doing peripheral T4->T3 conversion, or is it for some other reason?