There's a pretty simple test anyone (even a family member) can do for BPPV. Any comments on the results of the approach outlined below. We should first look to confirm (not necessarily 100% of course) or otherwise.

Benign Paroxysmal Positional Vertigo (BPPV)?

How is BPPV diagnosed?
The most important means for diagnosing this condition is the physical examination and history of the patient. A patient with dizziness or vertigo without hearing problems suggests the diagnosis of BPPV. A normal ear exam, audiogram, and neurological exam are expected. A simple positional test, performed in the doctor's office, is usually all that is needed to confirm the diagnosis of BPPV.

One such test is the Dix-Hallpike test. First, the patient is positioned on the examining table, seated upright. Then the examiner brings the patient's head down over the edge of the table and turns the head to one side. If the patient has BPPV, the examiner will witness a characteristic movement of the eyes, call nystagmus, that begins after a few seconds. If the nystagmus is seen and the patient becomes dizzy, then the ear which is pointing toward the floor is the one with the loose otoconia. If no nystagmus is seen the examiner will repeat the test, this time turning the head to the opposite side, thus testing the other ear.

This nystagmus and perception of vertigo will slow down and cease after 15 to 20 seconds. If the head is not moved, no further symptoms will occur. When the patient sits back up, the dizziness will recur, but for a shorter period of time. Lying down on the opposite side will not cause the vertigo. Occasionally, in order to confirm the extent of the inner ear dysfunction, an electronystagmogram (ENG) will be ordered.

Here's some more info on a non-drug, non-surgical treatment approach for BPPV

The Epley or Semont Maneuver

Researchers have found that a simple and well-tolerated physical therapy technique performed in the office can relieve the vertigo in a high percentage of patients. The Otolith Repositioning Procedure of Semont and Epley has become well accepted and is based on using gravity to move the crystals away from the nerve endings into an area of the inner ear that won’t cause any problems. Sometimes, a vibrator is placed on the mastoid to "liberate" the particles and improve the procedure's success.

Here's a youtube link:

Watch the video animation and notice that as the patient is moved into the various positions of the maneuver, the posterior semicircular canal is rotated in such a way as to deposit the displaced otoconia back into the vestibule where they can do no further harm.

There's also a self help treatment for this here:

Some authors comment that approximately 75% of patients are cured with one maneuver. This percentage increases with repeated treatments. Following the maneuver, patients must not lie flat for 48 hours, meaning they should sleep in a recliner or propped up on pillows. Also, after 48 hours, patients should not lay down on the affected ear for at least one week following the treatment. Even tying shoes or bending over should be avoided during this week. These instructions help prevent the crystals from falling back into the balance chamber.