They will make your symptoms worse for a while, is the way it was explained to me by the vestibular therapist. You are exactly duplicating the movements that trigger the problems, but in a controlled way and only a little bit at a time to build tolerance.

You should not overdo them, it should be a gradual increase. If it stirs things up and it doesn't settle down in 20 minutes, you've over done it and need to back off the next time... do less reps, less often.

In the beginning it might mean you're only doing it for 15 - 20 seconds at a time, once a day and that's ok... ultimately you're building up to 5 times a day, 2 minutes per exercise is the goal, according to my work sheet.

I don't know if there are any youtube videos with vestibular exercises, but it might be worth a search if you are interested in this and feel you might benefit.

Starr