SPITTING UP AND VOMITING: Spitting up is very common in babies. Some babies will even vomit one feeding per day. If you are concerned your baby is spitting up or vomiting up more food than he/she is keeping down, please give us a call. If the problem seems excessive or if your baby is constantly fussy, please call us as well. Vomit or spit up that has blood or army-green colored fluid is not normal and we ask that you call us right away.