Conversation: The conversation between human and AI assistant.
[|Human|] % year old son banged his head on door, cried a little then went to sleep. After about 25 mins he woke up and threw up on his bed then in the toilet all within a min or two. Was told by RN on phone to wake him every two hours to check that nothing is wrong. Just looking for another opinion. He is not dizzy and no headache.
[|AI|]  HI...vomiting after a head injury in a 5-year-old is concerning but as he is not doing it consistently and otherwise active, you can wait. I will suggest you the other danger sings you need to look for - 1. Vomiting continuously2. Seizures3. Watery of bloody discharge from ears and nose4. Unconsciousness5. Altered sensorial or behavior. If none of them are present, I don't think you should worry about his trivial head injury. Regards -