Glad to hear you can walk straight.

I would not connect the vestibular improvements to any cognitive improvements. They are different and separate systems. Give the cognitive some time. Now that you wont be bothered by the vestibular symptoms, you can start to take inventory of your cognitive symptoms and learn work-arounds and other accommodations. Many cognitive dysfunctions can be overcome with work-arounds and other accommodations.

Tell us of your most bothersome cognitive issues and maybe someone has an idea of how to work with rather than against that dysfunction. There are oodles of ways to work-around cognitive dysfunctions.

My best to you.