As per your query,i understand that it is done under Laparoscopic approach.
You didn't mention whether Prolene
mesh was placed or not?
If mesh is kept,as it is a foreign body,there will be some reaction surrounding it.
So,your stomach seems swollen.
It will be subsided soon.
Please take a good antibiotic and anti inflammatory drug.
If you still have any doubt,get an Ultrasound
You can come back after ultrasound report.I will clarify further.
Wish you speedy recovery.