I am so sorry to hear of the loss of your lil' one. I'm sure you're still just numb and in shock but, I would seriously consider an autopsy to know what it was that took her life.
One...for your own peace of mind, Two...rule out negligence on the part of the Vet (diazepam reaction?) and Third...if she died of something congenital, her breeder needs to be notified that she may have a problem in her line.
R.I.P. sweet Cali
somewhere over the
