Liver shunt or Prosystemic Shunt. Best article I fund was at
http://www.yorkierescue/livershunt/research2.html
Written by Karen Tobias, University of Tennessee. Even has a Liver shunt diet on her site. What concerns me is that my vet has not mentioned this possiblity, and it seems very common in toy breeds, especially Yorkies according to Dr Tobias. She gives a list of signs of the condition, my Gaby seems to have developed many of these over time. She doesn't exibit all the signs, but enough to make me very worried. Can anyone tell me just how serious this really is, my heart will break if Gabs has this and if I lose her I'll be beside myself!