Baby eating too much until she throws up: what to do?
Just continue to feed your baby normal feedings, a little throw up isn't something to be worried about. I f your baby is vomiting with force and it's upsetting your baby then you should talk to your pediatrician and see what they think it is, like reflux or allergies.
Babies spit up for lots of reasons, including gagging when the milk lets down quickly and forcefully, oversupply of milk, immature muscle control, allergy, and disease. Many times the reason for the spitting up can’t be determined. Most healthy babies will outgrow the spitting up stage within 4-6 months.
Spitting up is common in healthy babies. About half of all babies experience gastroesophageal reflux, also called infant reflux, during their first three months. Normally, a valve (lower esophageal sphincter) between the esophagus and the stomach keeps stomach contents where they belong. Until this valve has time to mature, spitting up might be an issue, especially if your baby eats too much. Normal spitting up doesn't interfere with a baby's well-being. As long as your baby seems comfortable and is eating well and gaining weight, there's little cause for concern. If your baby is gaining weight, then he or she isn't being harmed by the calories lost through spitting up.