Sorry to hear about you back problems, I know what it's like to live with pain, especially the kind that is so bad you cannot function hardly at all, let alone normally. That kind of pain that makes you sick and wish you'd just curl up and die, I suffer from a lot of pain off and on because of my porphyria. That and I got hit by a truck walking into a store almost and year and a half ago now, and I still suffer right hip, knee, leg pain, numbness, and loss of feeling. I have also developed carpel tunnel syndrome in my right hand because of it, have knuckle pain, damage, and weakness, and possibly have a torn rotator cuff in my right shoulder that hasn't been diagnosed or treated yet. They say pain lets you know you're not dead yet, but there are many days that I wish I was with all the pain and sickness I suffer from because of my medical condition.