I suffered from severe adrenal fatigue, and started with the Iodine first. It didn't make my adrenals worse at all. Thought others may have different experiences.
However, I do megadose vitamin C, and this is the primary thing responsible for healing my adrenals.
Whenever my adrenals over shoot adrenaline or I get stressed, or my blood Sugar goes nuts a megadose of vitamin C makes it disappear within minutes.