 [ Symptoms ] i am a 57 year old man and both niples hurt it does not feel like surface pain it is more of a deep dull pain  i am a 57 year old man and both niples hurt it does not feel like surface pain it is more of a deep dull pain  it is been hurting for over a month and sometime so bad it wakes me from my sleep [ Disease ] gastric juices in the stomach are bright yellow in most cases so a rapid transport of this fluid along with food can result in greenish stools this is very common in babies who often have a bowel movement as you are feeding them very rapid transport  other causes i do not know the age of this person include various green vegetables green stools are not considered a sign of anything bad