It occurs to me that individuals who vomit repeatedly introduce stomach
acids in their pharyngeal cavity. This has been associated with increased
loss of enamel from the teeth, and I don't see why it couldn't negatively
affect the opening of the eustachian tube, or even eject material into the
middle ear space via the forced regurgitation. I suppose that repeated
middle ear problems could be responsible for some sort of migration into
the cochlea, as it often found in chronic otitius media sufferers....as a
SN HF hearing loss.
Maybe this makes sense to others....I might add that frequent vomiting
also upsets the electrolyte balances of the body which I suppose could
affect fluids in the inner ear, too. Interesting question....
Marsha Johnson, M.S., CCC-A