Ask a Dog Vet and Get Answers to Your Dog Health Questions
Hello and thank you for your question. Sometimes when a dog gets a full shave down they do act differently and putting a shirt on them can help. Sometimes that event is a bit traumatizing to them and if the groomer did not have gentle hands, which some do not, then it makes it worse and some dogs will sleep most of the day when they get home. Shivering though, can be a sign of pain so take the vital signs of the dog , the link is below and make sure that is all normal.
I would call the groomer and ask if anything happened during grooming to be on the safe side. For now keep her comfortable and keep an eye on her vital signs.