It's hard to evaluate what's going on without knowing what product you're taking.
Since the Curezone Iodine Forum began, dozens of new Iodine products have come on the market. None of them have the track record that Lugol's and Iodoral do. We don't know if the product is contaminated with chemicals or metals. All we know for sure is that the bottle it came in cost more than the contents.
People also have had reactions from kelp and seaweed extracts.
Anybody just beginning Iodine should get their Lugol's or Iodoral from distributors who have stood the test of time. That way you will get a baseline understanding of how iodine reacts with your body. You can always experiment with the other iodine products six months from now.