my baby has been having yellowish green poop (looks a bit sticky too). it's less grainy and much more watery. should I be concerned? she's 4-month old, fully breastfed.

Breastfed baby poop is consider normal when it's a mustard yellow, green or brown color. It is typically seedy and pasty in texture and may be runny enough to resemble diarrhea. You may want to refer to the link for the color chart :) https://www.unitypoint.org/blankchildrens/article.aspx?id=40567710-74c7-4ef2-a040-847be9fbd35a