Please help ! iodine in kelp causing anxeity

I've been in a struggle the past year with adrenals, and now possibly low thyroid.
First taking the one drop of Iodine in water for only 2 days a month ago, I had developed bad anxiety, indicating my adrenals could not handle it.
So, I did some research and thought a more natural form from a kelp tablet would be nice to check. I started on some yesterday, felt better all evening, than continued into today, as the day went on, I felt worse, anxiety getting bad and low blood sugars all day too.( shakey, sweaty, nausios) I think I can not even handle the Iodine in kelp.
I see my doctor in 2 weeks for follow up and he indicated possibly putting me on Armour thyroid. Now, I'm afraid, if my thyroid ( adrenals) cant' handle iodine, who on earth can it handle Armour? I'm scared.
What's the connection for Hoshimots and iodine?
Pauline