Lots of things. Sinusitis, ear infection, eustacian tube obstruction, blood pressure elevations etc...If this is frequent symtom see you doc. No definitive answers will be found here.
Yes it can. Follow up with your pcp and ENT dr for proper and effective treatment of your condition. Take care! Http://www. Mayoclinic. Com/health/ear-infections/ds00303. http://m.hopkinsmedicine. Org/neurology_neurosurgery/specialty_areas/vestibular/conditions/vestibular_migraine. Html.