Good luck with your various challenges - I had to overcome diabetic nueropothy in my right leg and an injury to my right arm - gently and carefully - sorry the Personal Trainer missed the mark!  The back affects everything!!!  I started out with simple leg lifts - no weight - and only bending at the knee - and not holding any weight with my arms.  Keep on moving ahead.
And - congrats on the new job! Thats going to be exciting!
Stop by and see us!
JnC