Can Bodytite actually make a thin person's skin lose laxity? Why has my skin aged exponentially if I only needed tightening?

Now have crepey skin that sags in areas that were fine before the surgery. Horrified at loss of laxity. All I needed was skin tightening, not suction of fat. Doctor says there is no plan B if my skin doesn't return to normal. Not overweight, minimal swelling/bruising after the surgery. Had crushing chest pain that could only be relieved by chewing raw aspirin that lasted for several weeks. Doctor not supportive about chest pain, said I was putting him in an awkward position asking for his help.