Burping is often considered a "faux pas," as it can be embarrassing and off-putting, especially in social situations. But for some, the inability to belch can be an issue that can cause discomfort.

"Curdled milk is the result of milk mixing with stomach acid," said Ohio-based ob-gyn Kim Langdon, MD. When the milk in your refrigerator gets old, its pH drops making it more acidic. In your baby's ...