Step 4: Read and complete the decision guide to learn more about your symptoms.
Vomiting or Nausea in Children
Your child doesn't have a sore throat, cough or fever. You also have said that he's not taking any new medications.
Is it possible the vomiting could be related to something your child ate -- i.e., has he eaten any new foods, or is it possible he ate anything spoiled or not properly cooked?