I was reading Nora Gedgaudas' blog today and came across this,
"Note, however, that overdoing iodine or “loading” iodine too quickly can also stimulate over-activation of the thyroid in certain individuals in general, leading to possible heart palpitations, nervousness, trouble sleeping and anxiety-related issues. I would be inclined to test for TPO antibodies in such individuals just to be sure it wasn’t an autoimmune activation."
This quote can be found here:Radiation and Your Health: To Iodine or Not to Iodine? | Primal Body Primal Mind Diet and Nutrition