Usually, a child vomiting at night is due to a short-term illness, such as a virus or food poisoning. In other cases, it may be a sign of an underlying illness or problem. Various illnesses can cause ...

It starts with a mumbled complaint about a sore stomach at bedtime. Two hours later, the child in the top bunk is retching, and the sibling below wakes up drenched. Sheets, pajamas, the wall, a ...