If these tricks don't work for you, don't be afraid to reach out for help. Apart from the caffeine issue above, most mothers can eat Fussing at the breast foods without causing a nursing problem. Some babies are Fussing at the breast to certain foods — and you picked a good one to try stopping. She may become frustrated at the breast after the first let-down occurs and the flow of milk begins to slow. The baby is required to work very little. Try breastfeeding again after you've calmed your baby in this way.