Amy Fierstein's second son was 1 month old when he started projectile vomiting after he ate. Worried, Fierstein called her doctor, who recommended that she breastfeed him more slowly.

"I found it to be impossible to make him eat slower, so I took him back to the doctor," says Fierstein, of Los Angeles, Calif. "I was sent home to again monitor his breast milk intake and check for reflux or colic. The vomiting continued and he eventually could not keep anything down. My husband and I were sleep deprived, scared and frustrated. I finally called the doctor at home."

Fierstein's persistence paid off. The doctor recommended that they go to the emergency room for an ultrasound of Teddy's stomach. He was diagnosed with pyloric stenosis, a stomach obstruction that one in 100 baby boys suffer from at 1 month of age. He was immediately admitted to the pediatric ward and had surgery to enable food digestion.

"If we had waited longer, he would have started losing weight quickly," Fierstein says. "I am glad I trusted my gut."

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