Help Kayla walk again

As some of you know, many may not, back in November, Kayla basically woke up one day and couldn't walk. She's had double vision ever since this started and can't read or focus on anything for more than a few seconds without getting dizzy. After four emergency room visits within a week, two admissions to UT hospital, three CT scans, a brain MRI, a full-body MRI, a lumbar puncture/spinal tap, and a nerve conduction test, we still have no answers even three months later. We were put on a waiting list to get into Vanderbilt to see their neurology department for three months. That time has arrived, but after all the hospital visits, primary care visits, and physical therapy, the bills are really starting to pile up. We went from basically zero to max on our deductible in two months, and then the year restarted and we're back to zero. As much as I hate asking for help, there comes a point when you have to swallow your pride and ask. So this is me formally asking, anything helps, and if you're kind enough to donate, I greatly appreciate it, more than you could know. All we want is for her to be able to recover from this and return to a somewhat normal life.