Sorry I forgot to update- right when this was happening my own dog Molli had a HORRIBLE vaccine reaction and it took all my attention.
Thanks to everyone who gave me suggestions, he was put on fluids for a few days and his wbc returned to normal and he started eating again, he got up to 9.5 pounds! Here is his happy ending:
http://www.yorkietalk.com/forums/yor...ml#post4282932