health problem of chihuahua

My darling Patty,she is a beautiful chihuahua. she is an one-year-old deer head chihuahua that i got from a reputable chihuahua breeder.this is my first chihuahua. when i first brought her home, i thought she was sick as she was so timid and shy. And I don't know how to deal with it.So I search on the internet and want to learn some basic chihuahua health knowledge. Share with you all the most helpful article I have read, which is posted in chihuahua.dormitory , symptoms and signs of a sick chihuahua: see a vet!