Well, candida is a tough thing to get over. If you experience die-off symptoms after starting the diet which are flu-like symptoms, then there is a strong likelihood that you have it. At that point I would start a plan of attack and do you best to heal your immune system and digestion. It can take as long as 6-18 months to fully recover from candida overgrowth, so beware of the journey that lies ahead.
I would consider waiting until after the wedding to start the diet if its pretty soon. Otherwise I would start now and do your best to cope with the symptoms.