been there done that
Could it be a complication from a toothache or ear-ache?
How are your sinuses? Do you have Amalgam
fillngs in your teeth on that side? Do you now or have you ever chewed tobacco? (possible mouth cancer?). Maybe you only have to flush toxins. Don't expect professional neurologists to know any more than they learned in school, they learned how to make money, they weren't taught common sense.