Embarasing questions but, what would cause green stools?!

Embarasing questions but, what would cause green stools?

serious answers only please..im embarassed enough about asking, like completely green stool though.
=/

3 weeks ago
Oh I just remembered this.
Last night before i fell asleep, my lower stomach on the right side bellow my belly botton but more to the ride hurt soo bad. Even to the touch, it went away though. And this mornign i had stomach cramps when i had to pee and a few minutes ago.

I have consulted with a doctor, a physiologist and a microbiologist on this question, and the following summarizes their answers:
Healthy people can have green poop if they eat a diet rich in leafy green vegetables, or if they consume large quantities of food coloring (in ice cream, cake frosting etc.).
Green poop can also be caused by excess iron in the diet, from dietary supplements, for example. If the body does not absorb all the iron consumed, the iron may stain the poop green, the color of iron (II) salts. Ordinarily, the green color may be masked by the normal brown poop color, but if digestion is thrown off by illness so that bilirubin is less concentrated in the intestine, the green color may become apparent. This can happen when a person is afflicted with diarrhea.
Green poop in sick babies may come from iron in baby formula not being properly absorbed, or by green pigments in bile salts (again, green from iron).