I noticed ive had small black flakes in my stool. theyre about a half inch to one inch in size, and look like little leaves. they are mixed in with my stool. they are usually acoompanied with diarrhea.

Probably just food: Almost certainly this is just digested (or partly digested) food, and may in fact be leaves (e.g. lettuce?). Anyway, it doesn't matter. Nobody needs to examine their stool so closely. If not having ongoing diarrhea, constipation, cramps, blood in stool, or other obvious symptoms, then nothing is wrong. Various food items can appear like this. No worries, and I suggest you stop looking!