I had a fall on Thursday 3rd December when I banged the back of my head on the stairs. My head still hurts where I fell but ever since then I have this loud swishing noise in my head. I did go and see my GP last Monday for this and tried to explain the noise like a fast breathing sensation as well as my ordinary breathing. She examined my chest and ears and everything was fine. The noise is there constantly and is worse when I am trying to get to sleep. I now feel it is my head rather than my chest. it is obvious the bang on the head has set off this noise and worried it more serious than I seem to think. I also feel dizzy when I stand up and walk around. The doctor said to keep an eye on it.Do you think it would be worth me going back to the doctors and asking her to refer me for a scan?