The clearing of the throat and gagging could indicate tonsillitis (especially since you had the flu last week). None of mine have ever had tonsillitis, but they do say Yorkies are prone to it. The way to tell if it might be tonsillitis is the tonsils are swollen. You can feel little lumps when tonsils get infected. The lumps are just at the angle of the jaw bone. That also might be why he was vomiting last week. They also tend to not eat or drink well and just act quiet. The digging and whining might be an indication that there is pain involved.
Another thought would be roundworms. Dogs pick up the eggs by coming into contact with the feces containing the eggs. The eggs enter the dog's body by way of the mouth. When the eggs reach the dog's small intestine, they penetrate the intestinal wall and move into the bloodstream. Next, they are carried to the lungs, where they go into the air passages and migrate up to the trachea and into the esophagus. From the esophagus, they are swallowed and move down again to the intestines where they mature into worms. This migration from small intestine and back again takes 10 days. |