Which of the following signs or symptoms may indicate a concussion?

  1. Having a headache, feeling dizzy, experiencing foggy or fuzzy thoughts, or seeing spots of light.
  2. Being bothered by bright lights and loud sounds, hearing ringing in the ears, and feeling tired or like you are going to throw up.
  3. Not being sure where you are, or feeling very angry/sad.
  4. All of the above.