“How long do your symptoms last?” If longer than a few seconds, this is generally not a condition that can be helped with The Epley. Likewise, if you have had these symptoms for years, this is not BPPV.

“Do you have any other symptoms in your ears?” Ringing, buzzing, pain, aural fullness, discharge, changes in hearing, and of course dizziness or vertigo are all conditions which would warrant a referral to an audiologist (not a hearing aid clinic, there is a difference).

Which ear is affected? Performing the Epley is quite specific. Head at 30° is just that. Very few people know when their head is at 30° of their own avail. Doing the Epley incorrectly makes it far more likely to be not only unsuccessful, but detrimental. Similarly, which canal is affected? Is this a canal that The Epley could serve? Do you need the Semont? The Brandt-Daroff? The BBQ roll? The GRM?

Is there a confirmed positive Dix Hallpike with nystagmus? Is the nystagmus upbeating or sidebeating? Is it rotational in nature?

Has a carotid artery screening been performed? This can be extremely unnerving and dangerous to uncover while performing the Epley Maneuver on yourself.

Have you googled “drop attack”? Tumarkin’s otolithic crisis can occur post-Epley and is quite terrifying.