polyhydramnios during my second pregnancy, having 2 children in close concession (13 months apart)

Having had 2 children within 13 months of each other, along with developing polyhydramnios during my 2nd pregnancy. This caused my abdominal wall to part. I admit I have gained weight after both births (via c-section) Now I'm on a strict diet and working out 5 days a week, which is helping (102.7 down to 91.1 in 2months), however I do have a lot of over hang around my lower abdominal/c-section area that is remaining the same even after all my efforts.