Yeah… that is as far as I went.
https://www.physiofitnc.com/why-do-i-have-dizziness-after-covid-19-vaccine/
Dizziness and Vertigo
Why do I have dizziness after COVID – 19 vaccine?
https://www.dizzyandvertigo.com/covid-vaccine-and-lingering-dizziness-research/
https://vestibular.org/forum/dizziness/covid-19-vaccine-side-effects/
Have her see a good Neurologist!
God Bless!