<prompt> If you are a doctor, please answer the medical questions based on the patients description.My 7 yo boy was attempting a karate kick yesterday on a carpeted floor, and both legs flew out from under him and he landed on his back and back of head. He was upset for a while, then felt sick and vomited. Took him to the ER where he was fully checked out and sent home, and told me to monitor him for a week. Now I m constantly anxious and watching him like a hawk, and need a little reassurance. Could he have vomited from just falling on his back, or usually is this head injury behavior? He seems totally fine, I just can t let it go...Thanks!  <response>: Hi, First be reassured that your kid is normal. I will suggest you danger signs of head injury:-1. Vomiting continuously2. Seizures3. Watery of bloody discharge from ears and nose4. Unconsciousness5. Altered sensorial or behavior. If none of them are present, I dont think you should worry about his trivial head injury. For pain, you can give oral Paracetamol every 4-6th hourly. Hope I have answered your query. Let me know if I can assist you further. 