Had vestibular testing and MRI for periodic vertigo. Diagnosis was vestibular neuritis with prescription of vestibular rehab to resolve the vertigo. (also had this 10 years ago and neuro thinks I have started to decomensate) However a secondary finding on the MRI was a small cerebellum inconsistent with my age (26). I have no symptoms of ataxia. Neuro recommended a follow up in 6 months. I have had 2 prior head (not brain specific) MRI's and one head CT Scan with no mention of any of this. So I am freaking out thinking there is something degenerative going on but don't have the typical signs of ataxia.