The anesthetic does make them feel queasy, so sometimes they don't feel like eating for a few days. A younger pup might have a better appetite than an older dog.
My dogs have always gone right back to normal after they've recovered from the anesthetic (can be up to 48 hours to be fully recovered from it). So much so that I worried about their activity levels and whether they'd pull their stitches.
It also depends on the dog's personality. Some dogs are big babies and like to milk their pains for all they're worth, and some dogs just shrug it off and go play. And some in between.
My dogs have always gone right back to normal after they've recovered from the anesthetic (can be up to 48 hours to be fully recovered from it). So much so that I worried about their activity levels and whether they'd pull their stitches.
It also depends on the dog's personality. Some dogs are big babies and like to milk their pains for all they're worth, and some dogs just shrug it off and go play. And some in between.