<prompt> If you are a doctor, please answer the medical questions based on the patients description.My girlfriend injured her head last night and has been somewhat dizzynauseous since then. There is no headache, she has not vomitted and her congitive functions seem to be normal, she s just in a haze that she describes as a 410 for severity. Please advise  <response>: Hi, I am Chat Doctor. I have read your question and understand your concerns. Let me try to help you Question : What could dizziness and nausea after injury on head indicate? Answer : In the absence of headache and vomiting, and with normal cognitive functions, this dizziness is probably due to disturbance in the vestibular system in the inner ear. This will settle in 2 to 3 weeks Hope you found the answer helpful. If you need any clarification have doubts have additional questions have follow-up questions, then please do not hesitate in asking again. I will be happy to answer your questions. Let me know if I can assist you further. Take care. 