I think you're in the wrong forum:)
But you should ask a dr. Def.
This is something you should ask directly to a surgeon because I can't relate the health problem you referring to. However, someone with poor health cannot be a good candidate for tummy tuck surgery. Good health is mandatory for a tummy tuck procedure. And for what you asked, tummy tuck surgery can be a great solution for your problem. It tightens the abdominal muscles and removes the excess fat and skin. It will definitely give you a better result. Because I know many people who are satisfied with the tummy tuck surgery they underwent. I can suggest you a doctor who deals with all these surgeries in a clean manner.
Dr. Sammy Sliwin ( Location:Toronto, Ontario). He treats each one of this patients with utmost care and compassion.