Mrs sqad has nipped to the shops.........
Just a few comments based on your post.
Nothing sinister springs to mind and in the majority of these cases, there is either a " made up diagnosis by the doctors or a diagnosis of " one of those things"
History is the most important thing here as in the vast majority of cases, physical examination and investigations have little or nothing to contribute.
The inevitable " link" from the Mayo Clinic is an example of "Catalogue Medicine" thumb through it and pick a likely disease......makes my blood boil.
If I remember correctly, I think that you had similar episodes some couple of years back........if that is not so........forget it.
Now.
When the attacks come on, do you get a feeling of rotation, spinning or is it just that your surroundings just go"far away.?
How long do they last.....secs or minutes?
Are they associated with movements of the head or do they come on ay any time?
Any deafness, discharge or tinnitus?
Are you taking any medication?
Any underlying medical conditions?......what about neck pain.
I will then do my best..;-)