Leesa, they don't think my back is the issue.They saw something in my nerve & muscle biopsys it has to do with my blood but with all the blood tests came back neg.Also which is odd i can sit down any given time for 15min or so and then stand up and you can hear my knees & ankles crack.I have a call to the Doc about the muscle biopsy report theres something there i didn't like what i read.