#asktheexpert Hello!! My baby boy is 1 month and 9 days old. Sometimes he spits up curdy milk whenever he burps. he is exclusively on breastfeed only. I try to switch position after 20 mins to burp him but he cries and will not burp sometimes. His weight was 3.4kg on 30th January when we checked in pediatrician clinic. He have started spitting up milk recently. Can you please tell if this is an issue.