Well, i dont think heavy metals are the problem but 10 years of undiagnosed candida... i mean 10 years of toxins that finally overtoxed me (Each year I felt more and more sick until i finally find the problem: candida overgrowth).
In fact I read somwhere that is a good practice to start the diet, add digestive support (betaine+enzymes+fiber) and liver support during a month after starting the antifungals.