I have been devasted to hear that Zazzy's sister, little Stitch, died last Sunday, aged just 17 months old. She suffered from hydrocephalus ('water on the brain'), a condition where too much cerebrospinal fluid accumulates around the brain. According to Wikipedia, this condition has around 180 causes, including infection and premature birth (Stitch was the tiny puppy in the litter). She had the best treatment, love and care possible throughout her short life, and a lap to lie on when she was having a 'bad head day'. My heart goes out to David and Sharon Alderson.
RIP Little Stitch.