CBC published a detailed article by multimedia journalist Meredith Levine in October 2014 about the challenges of diagnosing and treating inner-ear balance (vestibular) disorders.
Among the challenges is the fact that the vestibular system is “… inaccessibly encased in bone, beyond the reach of biopsy or current imaging technology. Accurate diagnosis requires both specialized equipment … and specialists willing to invest inordinate amounts of time …”
Read the full article at http://www.cbc.ca/news/health/misunderstood-and-often-misdiagnosed-the-mystery-of-vertigo-1.2748513