Some major adjustments are taking place as kids settle in for the school year. The first few weeks of class can be stressful for young kids, and that can lead to some complaints.
Stomach aches and headaches aren't always emotional. Parents may also wan to talk to their pediatrician about physical causes. Bacteria, a virus, acid reflux, lactose intolerance, and/or constipation are often behind the stomach aches and vomiting of younger children.