An inner ear disorder that causes episodes of vertigo (spinning).
Alcohol
Alcohol can be a problem for some people with Meniere’s disease as it can cause the tiniest blood vessels at the very end of the system to contract and so restrict the blood supply to the inner ear. Small amounts of alcohol – one standard drink, such as a glass of beer (285ml), a glass of red wine (100ml) or a pub measure of spirits (30ml) – can actually improve the peripheral circulation, but any more has the opposite effect.
Articles
Unpredictability as a major factor in Meniere’s Disease
https://www.whirledfoundation.org/unpredictability-as-a-major-factor-in-menieres-disease/