I just checked myself and its.quite false. Snopes focuses on the story itself conflicting with ‘facts’ and that everything in the note is anecdotal and no scientific evidence is presented.
Plus if a doctor wrote this I would expect the big words to be medical terms that are relevant. The writer does not seem to onow that tinnitus is related to hearing for example. Also, asymptotic is a mathematical term – does not mean the same as asymptomatic.