What do you mean you saw candida in your stool? The only time I may have seen "candida" in my stool was during those first months after developping it and it was like a bit of curd in the stools (same like vaginal yeast discharge).
Otherwise, how do people "see" candida or parasites in their stools; these are microscopic organisms... Except for the helminths - worms like ascarides you see. But even worms are for the most part extremely small or microscopic.