I recently suffered a head injury. The doctor said it was a concussion and said I can go home, but I must return to the hospital if I feel dizzy,nauseous, have headaches etc. I feel fine most of the time, but I get dizzy suddenly if I move my head too quickly, or if I bend down. I'm not sure if it is normal to be feeling like this for the first few days. I don't really want to return to the hospital unnecessarily.