I do take selenium and have for a long time. I used to have migraines and read somewhere back then that selenium would help. I don't know if my anti-bodies are going down or not. I've asked 2 different doctors about taking iodine; one said there was so much iodine in the food we eat, like bread, that we don't need to supplement. Well, I knew this wasn't the case, but didn't feel up to an argument. When I asked the new doctor, he said I didn't need it cuz I was taking synthroid. I'm not sure about that but didn't pursue it. I've read some of Dr. Brownstein's stuff, and he makes a good case for iodine.
Be sure to let us know how you're doing with it.