randomguy : You are in Canada and know it takes a long time to get the MRI done. Since I lived there and know people complain about that

Have you done any vestibular testing ? I have done 3 times so far by different ENTs. Only once it showed nystagmus but they said non-localized. Meaning it is not coming from ear but from neck I think. Ofcourse nothing they can do from ENT perspective in spite of clear indication

Also Physical Therapists and one Neurologist tilt my head suddenly and check my eyes. No nystagmus.

As Estreetfan mentioned you can try prism lenses and some TBI patients benefited a lot from that. Ofcourse I tried that too. No luck for me