Hi - I'm new to this forum. I just had my 3rd son, and it's my 3rd time breastfeeding (one boob at a time, burping frequently during the feeding). He's 3 weeks old, and constantly spitting up in between feedings. Most often it's yellowish-white and curdled, and he seems to be in pain. Thought it was due to immature digestive system and/or stong letdown while nursing. Any advice or thoughts...? could it be due to dairy in my diet? my doctor says to wait one month before medication for possible reflux.