Hi Max,If you really think about it, it makes sense that you wouldn't be hungry. Your stomach has been through a lot of trauma with the creation of the wrap, and it's not very happy about it. As things settle down you'll be able to begin to eat again.
Pain is normal at this point, but you should be sure to stay ahead of it with your pain meds. Don't be a hero. If the meds aren't working, call your surgeon and let him know.
Be sure to call your PCP or surgeon to get anti nausea drugs, just in case. This time of year viruses abound, and you'll want to be ready for anything.
It sounds like you're doing great.
Take care, and get lots of rest.
Denise