<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I hit my head very hard yesterday and now my nose is red and theres some redness around it. I also fainted for a few seconds. Whats wrong with me?  <response>: Based on your symptoms, it seems like you have a head injury. We need to do some tests to check for any internal bleeding in your brain. Its best to get it checked as soon as possible to avoid any complications. 