Revision of TT or liposuction
It would be very hard from these photos to give you correct answer; detailed clinical examination would is needed. Your options, based on your story and photos are between liposuction only to a full TT with liposuction. You should consult an experienced plastic surgeon elsewhere for detailed evaluation and discuss your options. Good luck.
I think you would have an excellent result with a full abdominoplasty. The belly button is not moved in this procedure but you will have a scar around the bellly button. Best of luck. Jane