I just tried Hijiki (seaweed) and had no reaction. All these years I have been afraid to try any seaweed because of the reaction I had to Nori. Hijiki seems to be alright. I have taken kelp supplement without problem, so I got a package of kelp to try--later. I am taking my time, because I need to make sure I'm not going to have a big reaction, since I know I can't use Nori.
And, yeah, I'm one of the people who probably has the iodine deficiency who supposedly tests "normal" for the TSH. I can't get the doctors to test for the free T3 or T4 or thyroid antibodies. I know I have low iodine, but can't get anywhere. I will look for the Lugol's iodine.
an higher dose of thyroxin should sort all your problems, let me know plz.