I don't know what to tell you. I guess it could be a form of an aura. If you are truly concerned maybe you should contact your doctor.
Hi,
How are you? Are there other symptoms present? Dizzy spells may be caused by insufficient oxygen in the brain which may be attributed to a variety of issues. This includes ear infections, vertigo, error of refraction, orthostatic hypotension, hypoglycemia, and underlying conditions like anemia. If it recurs, it is best that you have this checked by your doctor for proper evaluation. Direct clinical examination and diagnostic tests may be done to help with the diagnosis. Take care and do keep us posted.