No, it’s not that. It’s an acronym created by an ENT in Belgium for taking a dizzy patient’s history. It’s on Pages 2-3 of this document:
http://ifosparis2017.org/sites/default/files/abstract_book_-_equilibrium.docx.pdf
Here’s an excerpt:
As an example we give the following SO STONED history of a 35 year old woman:
•S (Symptoms): vertigo spells
•O (Often): some periods daily, some times a couple of times per month
•S (Since): 1 year ago it started
•T (Triggers): moving around but the vertigo spells can come also spontaneous
•O (Otology): negative
•N (Neurology): some times head ache, migraine in the past, photophobia, motion
sickness
•E (Evolution): ups and downs
•D (Duration): Usually minutes to hoursThis is suggestive for Vestibular Migraine. This scheme helps the pattern recognition of the
clinician and guides the history taking.