Hi, Thank you for using Healthcaremagic. I m Sorry to hear about your daughter. Usually most of these sort of falls don t result in serious injuries however once a patient shows signs such as nausea, vomiting, dizziness, persistent headaches or weakness or numbness in the limbs that indicates the possibility of a serious underlying injury. Whenever these symptoms show up it is always wise to get a clinical exam done and if necessary a CT scan of the head should be done as well. In the case of your daughter, since she has a headache and is nauseous, it is imperative that she a physician as soon as possible. I would also like to get a CT scan of the head done as well however the treating physician can be the best judge of that. It s possible that this is just a concussion however more serious conditions do need to be ruled out. I would strongly suggest a visit to the doctor s office.