I do know that I got dizziness when taking Iodine
supplements, mostly in the beginning. I currently don't use it that often, because I am going through a weird phase too right now (but I will start it anytime soon again). I hope that helps, and maybe other people ( pretty much all of them know more and have more experience then me, when it comes to iodine) could help clarifying on what's happening.
From the Netherlands.