I know very little about it, but I believe there is thought to be some possible overlap between <span style = 'background-color: #dae8f4'>meniere's</span> disease
disease causes episodes of ear fullness, tinnitus, and fluctuating hearing loss, but also vertigo, at least the typical meniere's
. The etiology (cause) of meniere's
is uncertain, and thinking has changed about it recently. Also, I think there are many variants of meniere's
and migraine, which can make diagnosis tricky.
You might investigate this connection.