question: I am not able to walk upon waking my you lower back  willl not support me. I slide to the floor and inch upon to standing position.  Een then I am afraid towalk too quickly, as my legs haven given way before.  Takingstairs is impossibe. If I sleep  in  the lazy boy with pillow s under my legs in zero gravity position, I am able to sleep thru the night and get  better. Please advise