My shih tzu is 9 years old. She has taken to having anxiety at night. She pants and is restless all night long. I am exhausted. I have tried giving her resuce remedy, placing her in bed, no help. She seems to be worse on nights it rains and/or is windy. I don't know what else to try. Any suggestions. She has been to the vet for a checkup and there is nothing wrong.
Laura