When your dog is sick their is a unique sadness that envelopes the entire family. They don’t complain as us human’s do but their sickness is shown through their lack of energy and enthusiasm that normally so penetrates their life. The great joy that they have in eating food or playing catch is set aside as they nap their day and night away. We as their friends feel that sickness because those little things that made them so happy aren’t helping and as such we lose out on those little pleasures as well. When recovery (G-D willing) occurs we also again enjoy those little pleasures. How long it last depends on the owner. Stop licking me! I’ll play ball later! It’s just chicken!