Hi, I'm a new mom and my baby has been breastfed from birth. When we came home her pees and poops slowed so the Ped. told me to supplement with formula. She had still be extremely fussy and was spitting up all the time so I went back to Ped. and they prescribed Zantac for acid reflux. She is also on gas drops for excessive has pains. Recently I've Ben researching a little on my own and found that with my low caloric intake she may have not been getting enough hindmilk and so I've been nursing on one side at a time to be sure she gets all the milk out if the breast she can. I am still supplementing bc she will nurse for up to 3 hours at a time and still be starving! I give her 2 oz of formula and she's happy. But then she started 2 days ago having green loose stool which I know can be normal for breastfed babies but it is accompanied by spitting up and lots of tummy discomfort. It cannot be a sensitivity to cow protein in my breastmilk bc I'm lactose intolerant and go not take in any dairy. Could she have a sensitivity to something else in my milk or to the formula? I'm afraid yo take her off one or the other to find out she gets worse. Please help!