Sounds like you are already experiencing die-off to me. Be sure to take something to support your liver and kidneys, this will reduce die-off. Molybdenum is one such supplement.
Be sure to eat plenty of foods…keep in mind that everything you eat is feeding candida no matter what kind of diet you do; its all about reducing their numbers but not complete elimination. You can do a diet that feeds the candida less than other diets but that is about it.