I routinely have a few small, sesame seed like things in my stool. However, I never eat anything with sesame seeds. Moreover, I've noticed that my stool has smelled much worse than it ever has as I have developed theses seed-like things. They are hard, and don't smell particularly bad, but if you "break" them, they smell horrible. What could they be? They look exactly like this: WWW.WWWW.WW