Hi! It is difficult to determine what may be going on with your new baby. It could be that she did some 'extra grooming' which caused her stomach issues, or it could be something else. I suggest that you contact the vet or center that did the spay & see if they will see her. Or, if you have chosen a vet, go ahead & get her in for her first wellness visit. The reason I suggested she see a vet is that if she has a fever it could mean she has a bacterial infection or virus, which is not likely, but better safe than sorry. If her behavior hasn't really changed (she's not lethargic or inactive), she is probably fine, but if it was me, I'd call the vet just to be sure!
#PetHealthandNutrition