Hi! Sorry to hear about your back. I started to have back pain about six months after my Bilateral. Doc said it was arthritis. My lower back used to really bother me years back but then improved. Now that I am able to walk upright and more normally, I feel my back again. BUT... I'm still crazy happy that I can do so many more things and have no pain now that I don't mind the swap. I hope you find the good outweighs the bad. Carpe diem!