Thanks to the email from Anon with comments on Meniere’s and the coping tip of vigorous head shaking, which is similar to advice Vestibular Rehabilitation gave Sue after years of sitting motionless following severe spin attacks - moving around helps ‘reset’ the system.
Works too. Meniere’s is a sneaky, cheating, ambushing disease which after hitting hard, making life unbearable, hides only to pounce when least expected.