I had to have a complete unfill in the hospital a few hours after my C section. I thnk I retain a ton of water after my C section and it happened pretty quickly. I shouldn't have tried to eat right away, but I was hungry. I too didn't really have any major issues during pregnancy, a little tighter towards the end, but manageable. Unfortunately, I've had issues with my band every since. I can't get it at the right fill level like it was before my first band pregnancy. I've gained weight and it sucks. I hope you don't have all of the same issues I had. I would try to at least get a small unfill, but not a total unfill if you don't need it.
By the way, your baby is ADORABLE!!!!!!