breastmilk . They keep spitting up and puking, even if I mix just a little bit of formula with it. They hav…" /> breastmilk . They keep spitting up and puking, even if I mix just a little bit of formula with it. They hav…" /> breastmilk . They keep spitting up and puking, even if I mix just a little bit of formula with it. They hav…" />