oh Kimber...poor girlie. Have you discussed other longer-term pain medications available? i know you likely have. getting older really sucks, especially for what she's been through health-wise. what about massage? in conjunction with her chiro and acupuncture, would that help at least with the musculatory soreness?
and steps for "her" bed... fairly easy to train them to use the steps instead of jumping up and down, esp. if they're already hurting a bit, they see the benefits right away!