["My daughter's chihuahua mix was diagnosed with an auto-immune disease when she was just a puppy.", 'Oh no, poor little thing.', 'Yea, it was hard to deal with, but she had a really good life.  She passed away at age 6 this past February though.']
I am so heartbroken thinking about it.  I'm sorry.
Our chihuahua dog had an autoimmune disease.  We lost her in February and it's still hard.