Younger children might not be able to tell you that they feel like vomiting, but might look pale and unwell. They also might not want to eat. Sometimes nausea happens by itself, and sometimes your child might actually vomit.
Symptom:
Young children, especially infants with nausea; if parents pay attention, they can recognize symptoms through the following signs: The baby is crying, sucking poorly or refusing to feed, stomach distended, bowel loops visible.