Contour irregularities after a tummy tuck
can certainly occur and most issue are fixable with office revisions. Did you mention this to your surgeon at your very last visit when photos are usually taken? Have you had any weight fluctuations since your procedure where you lost more weight? Bottom line, you must see a surgeon for an evaluation of your concerns and to get reasonable options from which you can choose.
Examination and photos
You should seek consultation from your surgeon or another board certified plastic surgeon. You should also post a photo to get more accurate feedback of your concerns.
You are over 2 years and it sounds like you need to go back to your surgeon or local expert to discuss your concerns. You need an examination to determine what is going on. Good luck.