I submit observations from personal experience with my own Ménière's disease and report anecdotal case studies of my patients to seek corroboration from your specialty.
As an ophthalmologist, I frequently evaluate patients for a possible ocular contribution to “dizziness” symptoms that seem vertiginous. Review of systems almost always discloses a history of chronic sinus congestion, postnasal drip, frequent or chronic sinusitus, and/or allergies. One commonly affected group seems to be pilots and flight attendants. Often, their symptoms match the kind of vaguely “seasick” feeling I experience intermittently between true vertigo bouts with Ménière's disease.