Just another suggestion - as well as the ear/vestibular side ( I am being referred to an ENT specialist) I also paid myself to see a behavioural optometrist for some vision problems that had never quite resolved after my first injury, and were made much worse by my recent injury.

He diagnosed some convergence problems, ie my eyes not working together very well, and a midline shift, which can contribute to dizziness, vision problems, etc.

I now have prism glasses, have vision therapy once a month and do eye exercises at home and all this has improved greatly.

If you can get a referral, great, or if you have to, and are able to, pay yourself, this is some of the best therapy I have had.