Do you have any Amalgam fillings? I believe that mercury can cause Schizophrenia symptoms. Have you had a lot of vaccines? They contain mercury. If you have mercury fillings I would definitely cut back to a very low maintenance dose on Iodine until you can get the fillings safely removed. I would recommend cutting back on the Iodine for awhile in any case because it is obvious that you are releasing more toxins than your body can eliminate right now.
Focus on cleansing and parasite removal for awhile.
Try to eat organic if possible and avoid all junk food.
Also keeping an alkaline body PH helps a lot. Apple cider vinegar can help a lot with this.