Iodine/unknown endocrine problem.

Hi, I've been crashing since the beginning of the year. I have candida and some other stuff that hasn't been diagnosed. I was hypothyroid at one point. Right now I'm getting shortness of breath, numb extremeties, muscle weakness, light headedness, cold hands, trouble concentrating, headache, restless sleep, overreaction to loud noises, and extreme tiredness/falling asleep in bad situations. I just got off of lithium which I was on for over a year, I'm hoping it was affecting my thyroid and things will go back to normal. The worst of the muscle weakness is gone since then, but everything else is still just as bad. My doc only will test tsh and it was normal. I feel like when I had hypothytroidism and suspected adrenal fatigue.

I'm wondering if it's a good idea to try iodine regularly and see if it helps. I took around 50mg of KI last night and my neck is still swollen and hurts a little. It made me feel worse. My doc suggested a gentle detox, GI effects comprehensive profile for my stomach issues, and maca for my endocrine system. He also has me on b complex shots. I take chlorella, oxygen/enzyme/mineral drops, apple cider vinegar,  cal/mag/zinc, a food based multi, potassium, flax seed oil, and a probiotic also. I'm not very consistent with everything though.

It's going to be very hard to get much of any testing done, and all my routine lab work has come back normal. My doc said I've already had so much testing that there's not much else he can test for that would be helpful (I don't believe that though).

Does anyone have any ideas on how to approach this and if the iodine is a good idea? I heard it can make hypothyroidism worse in combination with the effects of lithium. I need some kind of game plan. BTW, I get overstimulated and anxious from every adaptogen besides maca, and even a lot of amino acids give me weird psych effects. Let me know if anyone has any good ideas, I need some kind of energy to get through school and work.