Sorry you and your dog had a rough time at the vet. I certainly do not know how to help your dog's behavior. However, when I take my Annie (not used to car rides or vet clinics) to the vet for her rabies shot or blood work, I call ahead and the vet and/or techs come to the car and do it & Annie does great. Maybe that would work for you; it probably would not stress her out as much.