Breastfeeding should be pleasant for both mother and baby, and your baby's distress does not indicate a pleasurable experience. While food allergens in your diet can pass through your milk and affect your baby, it doesn't sound as if that's happening in your case. Infants with food allergies (generally to dairy or wheat products in the mother's diet) have diarrhea, bloating, and abdominal pain after, but not during, feeding.
Gastro esophageal reflux (GER) is also a common cause of pain associated with eating, but, similar to food allergies, the pain from reflux usually occurs immediately or shortly after eating. It sounds as if your suspicions that an overactive milk ejection reflex is responsible for your baby's upset are correct. During breastfeeding, there is usually a balanced supply and demand -- you supply the exact amount of milk that baby needs at a rate he can swallow and digest. Even though some nursing mothers do deliver more milk than a baby can handle at one feeding, by 3 months of age the supply and demand usually clicks in. It sounds as if this balancing has not yet happened for you. You should continue working with your health care provider and pediatrician to find out the exact source of your baby's nursing discomfort. In the meantime, here's how you can help him feed more comfortably:
