Post op vomiting is common in humans and animals. Anesthesia can be rough on the belly Did you feed her right away when she came home? Starting with water is best and then small, spaced meals for a day or so. It's definitely tougher on the girls than the boys when it comes to post spaying pain. If her incision line was bumped, it probably hurt her a bit. Just try and keep her quiet and try and avoid those bumps My vet recommends leash walking only for 10 days, until the incision is healed and the innards have a chance to knit. If she continues to vomit, has difficulty urinating or pooping, seems to be in any undue pain, do call the vet Feel better soon Waffles