['My daughter had a little chihuahua pup that we rescued and she had an autoimmune disease.  We had a rough first year, but then it seemed things were good.']
So, the pup is healthy and  situated now?
We had a little chihuahua pup that had an auto-immune disease.  She had a great life for 6 years and then passed away a few months ago due to pancreatitis.