What is this lump after my diastasis recti repair? (Photo)

I am experiencing something that even my surgeon can’t explain and said she’s never seen. My stomach is swelling more and more as the ay progresses. It doesn’t hurt. It’s uncomfortable and not pretty. It feels like there’s a lump. I had a diastasis recti repair with my tummy tuck. I was told to stay away from dairy. My option is to go through the surgery again, which I don’t want to do, to try and fix it. Pictures are below.