Hi, I have been having a stool that is a slight green color, with bright green feathery stuff on it. My question is what could possibly cause this. I know too much iron can make your stool green, but ive had stool with too much iron, and this isn t quiet that green, its a more dark greenish brown. I hope you can help me figure out if its something serious. Thank you, Sincerely Angelique Schoonover