If your four month old had green and/or runny poo almost half of the time but was otherwise happy healthy and growing well (the Drs who have seen him have described him as thriving) would you be concerned and get it checked?
He has always been a colicky bub with a windy tummy, just like DS1 was, but now it's hardly bothering him at all... He just has these poos. sometimes he'll also have yellow but slightly mucousy ones but others are fine.
He's fully breastfed. Wondering if I may not be producing enough hindmilk?