How Do I Know If My German Shepherd Is Healthy?

How Do I Know If My German Shepherd Is Healthy? General: Lameness, lack of coordination, asymmetry of muscles, weight change, bloated abdomen, swelling, coughing, gagging, lethargy, increased aggression, appetite, or water consumption. Mouth: Red, bleeding, swollen, or discolored gums; loose or dirty teeth; sores of the tongue or gums; bad breath. Is my German Shepherd