I had a tummy tuck and "hip lipo" 8 days ago. I am fine with respect to the abdomen but my mid and lower back still burn/ache and feel hyperesthetic and numb at the same time. It is very hard to sleep and if i move position, it feels like i am ripping something inside my back. I do not see anyone else complaining of this on these boards and I am concerned. How long should i expect this to go on? In 8 days i have noticed no noticeable improvement.