51-year-old female with vitamin D deficiency among other medical problems: high blood pressure, episodes of transient syncope, and sleep apnea. In the expert's opinion frequent changes and discontinuations of drugs as well as big intervals between one dose to another, can be responsible for hypertensive crisis. Therefore the expert recommends to stop too frequent investigations , and instead focus on appropriate treatment, that should be combination of Angiotensin Receptor Blocker and diuretics.

47-year-old female who had the onset of persistent vertigo. The first evaluations revealed right beating nystagmus on gaze straight and to the right, unsteady gait with limb ataxia, and positive head thrust to the left. Improvement seemed to be occurring in that gait deviation with eyes closed was no longer present. Vestibular physical therapy exercises were started. On the next evaluations there was paroxysmal positional vertigo from the left ear and minimal neurosensory hearing loss. An audiogram showed minor neurosensory deafness.