It is not uncommon for those with candida to pass out white particles from their bowel. Over the years i have heard this on many occasions from yeast infection patients I have seen, and some report weird shaped white particles, others mention white "pin dots" and one patient brought in a jar containing stool which was covered in part in a fungal "bloom" even. When you think about it, a vaginal discharge that is candida can be cheesy and white, and a stool "discharge" similarly can have white particles in or on it.