[yorkietalkjilly]

I would get a second vet opinion and be sure she doesn't have allergies, MVD/liver shunt or other medical conditions, pain, allergies, etc. Video her doing the odd things and keep a journal for a week on what she eats, drinks, sleep, play/exercise/training times and what her behaviors are and on a return vet visit, show the video and journal to the vet.

Training at obedience and setting/actually consistently and lovingly reinforcing boundaries will totally change your dog's behavior and alleviates most anxieties as long as the dog's life is stable, healthy and in a loving home. It is work to train a dog but only about 5 mins. x 3 daily totalling about 15 mins. the first couple of months is needed and then you can stretch it out to a less frequent schedule but it must be kept up, refreshed. You can even train her not to bark! It's easy once a dog has learned discipline and how to control it's own impulses. Good daily exercise and enriching her life with the training, exercising, challenging games you think up to play with your dog such as searching out hidden treats with her around the house will help her health, happiness and satisfaction/fulfillment of her life will keep her focused on her busy life and not any anxieties or stresses as much. Dogs get bored with their often mundane, inactive house lives - especially intelligent and intuitive ones - and need good, strong but loving leadership by someone who knows how to engage a dog on its level and make it want to work for that leader to achieve a goal together - whether it's learning a trick or find that treat or taking a walk together. So many dogs misbehave and act out because their owners don't take the time to consistently train them and shape their dog into the pet they want. Great pet dogs rarely just happen.

Other times dogs change their behavior and act out because of illness and without a voice and ability to tell us what is going on, only altered behavior is often all that we have to tell us and the vet that the dog is having medical problems or pain.