... on the contrary. Acrophobia = phobia. Phobia = anxiety disorder. Anxiety disorder = mental disorder. Mental disorder = mental. It's common to experience "physical reactions" from psychological occurrences. Those who suffer from phobia commonly experience dizziness & nausea, they sweet, hyperventilate, shake, & in severe cases vomit & pass out et cetera when exposed to said phobia. These physical reactions do not render phobia a physical disorder. My comment neither states a) those who have Meniere's develop acrophobia - a irrational fear - after they experience Meniere's symptoms or b) those who have Meniere's develop physiological sensitivities to various forms of motion before they have Meniere's. I said they develop rational fears - rational fears are not phobias - & physiological sensitivities - again, not psychological - after they experience Meniere's symptoms. ... No. It doesn't. Analogous to albinism, individuals with Meniere's are of higher susceptibility to physical environments (roller coasters/UV radiation) which dominate their physiological condition (vestibular/pigment) - which has nothing to do with phobia. Hence both individuals suffering Meniere's & individuals devoid of pigment are obviously going to logically fear both roller coasters/falling from a height & UV radiation. Thus my use of analogy holds true. So, the data you're collecting is an attempt to correlate what, exactly? That a) individuals prone to motion sickness & vertigo are going to rationally avoid or fear roller coasters & falling from a height & b) if acrophobic, acrophobics will remain acrophobic because they were acrophobic prior to experiencing Meniere's symptoms? Do you not consider these correlations obvious?