Kindly have your proctoscopy done and stool examinations . please take less spicy food and laxative if constipated . Take food full of fibers and plenty water
Well, I have no answers for you but I've certainly seen PLENTY of people with this exact question! They also don't seem to have any answers.
I googled "white fuzzy poop" and was REALLY surprised to see how many questions there are about that on the internet, accompanied by blood, and zero answers.
Maybe you should call your doctor?