I had a similar (but not the same) physical issue and before I bought my new car, I rented for a week and/or took loaners to be sure that it would be OK in all types of driving conditions (city, highway, waiting for a while in a car pool lane, etc). Hated all the Nissans, loved the Hyundai Santa Fe, loved the new 2018 BMW X3 and X1.
Can you do a long term test drive? Or rent from Emerald or Hertz before buying?