Stress is one of the common expressions of pressure or strain. It is a feeling that both human beings and animals experience but express it differently. For instance, if a dog is under-stressed, it will show certain symptoms like shaking, barking,drooling, licking, shedding, panting, changes in body posture, etc. Some other common Signs Your Dog is Stressed is changes in bodily function like sudden urge to go to bathroom, refusal of food, sniffing the ground, licking their genitals,etc. It is necessary if your dog shows these symptoms, visit a veterinary clinic and go for the routine check-up.