4 weeks is still early after a tummy tuck and swelling will not fully resolve until several months (not weeks) after your surgery. You stated that your surgeon said he could not make you super flat which is somewhat odd. An abdominoplasty is a strong procedure and most people really do end up super flat.
Good candidates for any procedure such as this are not obese so if you were truly still overweight before the procedure you may not be getting the result you had hoped for. This is something to discuss with your doctor (and should have been discussed preop so that you would have appropriate expectations!) You should have been shown pictures of people similar to you before and after surgery not only ideal candidates. Good luck!





