I would get to your ideal weight and when the time comes to do surgery then you would neeed to get medical clearance from your internist/pulmonologist before proceeding with surgery.Having sleep apnea does not mean you can not have general anesthesia.
It is not extremely rare belly button problems after tummy tuck. Especially smokers have high incidence of bellybutton partial or total necrosis due to problematic blood supply. Minimal debridement and dressing changes are necessary. Best of luck!
Dear LoveBest,I am not sure if a compression garment can impact the final shape unless it is so tight that it causes tissue damage, For the bra roll/ upper back area I like my patients to layer a Spanx tank top or tight work out tank under the other garment for a smoother transition.Happy healing!