Shih Tzu Not Feeling Well. Other common conditions include corneal ulcers, eye infections, cataracts and entropion. Signs of a fever can include a warm and dry nose, red eyes, lack of energy, warm ears, and shivering.

The latter is when one or both of the eyelids turn inward towards the eyeballs. When your shih tzu eats well, he is bound to act well. The next time your shih tzu’s tongue stick out, it could be a sign they are totally relaxed, content and happy with.