You may be dehydrated and trying to push more iodine detox than your kidneys can handle. Take a break till you feel right again, and every day drink half your body weight (in pounds) in ounces of water. 50 oz water per 100 pounds. You can also do a salt flush, but I prefer using salt daily, 1/4 -1/2 teaspoon per quart of water. Be sure vitamin C is among your supplements. Some people prefer to use half salt, half potassium chloride, and add ascorbic acid to the solution for a tonic and adrenal support.