I hit the left side of my head pretty hard and initially heard a high-pitched noise and then had some trouble hearing. I fell asleep (it was night time). When I woke up, my hearing was fine, but I was dizzy each time I sat up or got up. It only lasted a few seconds. I also felt nausea but did not throw-up. It's been almost 24 hours, and I'm only dizzy once every few hours, and my stomach is fine. My husband thinks I should go to a doctor, but I think I'm getting better and will be fine. Who is right?