17 months post-op: all was good until some numbness came back.

Just recently part of my abdomen between my belly button and scar has recently gone numb as well as a piece on left hand side. Middle area has pins and needles sensation. PS has no idea what is happening and either do I. Scar looks fine. Had a steroid shot (kenelog) 2cc to the middle scar to reduce redness. Numbness happened one week after this. I was told the steroid shot would not cause any damage..can someone help me I have no clue what has gone wrong.