Seriously, sorry to hear of your trouble, Cap'n.
1) See your M.D.
I have an extended appointment for next Tuesday to primarily discuss the vertigo, spinal issues, the knee issues and my hips.... anything else if we get time, like shingles, etc.
2) Avoid operating machinery. Avoid high places and make no sudden moves or changes of position of your head and neck.
All my machinery items [power tools/air tools] have been packed ready for our move. I had thoughts on selling it all, but it did occur to me that I still like to tinker with various projects and would be in a better position to do so once we're in Tassie. I don't struggle anywhere near as bad with vertigo down there... nor the extreme heat, so for me it's a win, win situation.
I wouldn't be doing high places anyway. My feet stay firmly on the ground when it comes to climbing ladders or anything higher than a computer chair. I try not to move my head or turn my neck very much at all, though not just because of the vertigo and dizziness, etc. I have spinal issues in my neck [non-existent discs/non-surgical spinal fusion] that make it painful to do at the best of times.
3) You might consider having your M.D. evaluate you for Vertebro-basilar arterial insufficiency, besides ENT re-eval of your vertigo.
Not too sure what the first part is but I'll ask. As for the vertigo re-evaluation, that's already in motion. I have a referral to get a scan done on my right-side neck and ear. We do know that I have a cyst near my ear canal and that it may be the cause of some issues, but it wouldn't hurt to elaborate with this new scan.
Thanks for your concern and advice, Doc, 'tis much appreciated. In fact, if you weren't retired, I'd be on to your receptionist to make an extended appointment.... one long enough to have a few beers; lunch a few times; to take in a bit of sight seeing; dinner here and there; maybe something cultural like a concert or two.