When I did vestibular therapy, they added yoga into my therapy to help me learn to tolerate changes in balance and weight shifting.
I then found a restorative yoga class at my university. It was wonderful! The instructor also worked with me individual to help me modify when needed and always allowed me to stay in a restorative position if I couldn't do what the rest of the class was doing.
I now do it at home as the semester ended. I want to find a class for the summer, but all the classes near me are "hot yoga". I wouldn't make it past breathing before I'd get dizzy there!
When I worked in special education, I very often included a "yoga" time in the early afternoon. Very simple poses with names the kids would understand. If it was something the child wasn't able to do, we would modify and also allowed them to just sit and be still. It really made a huge difference. The kids got a chance to "reset" before the afternoon academic time started. So I feel like no matter the neurological level, if you can adapt it or even just stop and be still, your nervous system benefits.
My suggestion would be to find a "restorative" class or something designed for people with chronic pain. It wont' be as harsh on your brain and body