Anxiety is the leading cause of behavior problems in the dogs I work with. (buckeyedogtraining.com)
You may also notice common behavior problems in your dog such as jumping up, barking, or even aggression. (thesprucepets.com)
Dog Pride specializes in diagnosing and solving behavior problems in dogs of all ages and in prevention therapy / training for puppies 8 weeks and up. (flipbiondi.com)