There is no one size fits all dosage for everyone, sorry. And you can't "test your Iodine levels" because the body doesn't store iodine, it's not a metal or mineral. Try taking kelp instead, a lot of people have posted having negative symptoms from taking Iodine but I've never seen anyone react negatively to kelp. If you have adrenal fatigue, Iodine is not going to cure it, sorry, there's no one magic pill for that. Body chemistry is complex and needs several things, without a test you're just guessing.