I recently rescued a puggle from an animal shelter. I soon discovered that he has a condition known as megaesophagus, which, from what I understand, is serious and requires constant vigilance to control.
I have a Shih Tzu that is about 10 years old, and he is having problems with his back hind leg. It is almost like there is a catch in his back. He is unable to jump and appears to be in some pain.