Head up and head down will be dizzy how to return a responsibility

Head up and head down when the phenomenon of dizziness, first considered for otolithiasis, this situation dizziness time is very short, and will also be accompanied by nystagmus symptoms. In addition, it may be cervical spondylosis, this situation is mainly due to cervical spondylosis caused by insufficient blood supply to the brain, resulting in dizziness phenomenon.