Teddy's symptoms of convulsions, unsteadiness, trembling, and shortness of breath may be caused by poisoning, calcium deficiency, or other diseases. The owner should pay attention to the dog's condition. If it does not improve, take the dog to a pet immediately. The hospital conducts examination and treatment, adjusts the dog's diet, guides the dog to drink more water, and does not let the dog eat randomly to avoid food poisoning and death of the dog.