you must be out of your mind with worry -
That breeder is NUTS telling you to fast her !! NO Yorkie should ever be without food that long - especially a puppy...You did the right thing bringing her in so fast and I'm just sorry she's this sick....I can't believe the breeder said that to you and just wonder how many others she's said that too also.
Poor little Gemma....She's in good hands right where she is and they'll get her healthy again.
Ps - I'm sorry I missed this earlier - When I posted in the other thread I thought you were looking for general information and I would never have been so unconcerned in my reply when I mentioned Shooters Site ...
but that really IS a good site to read and I suggest when you have time you take a look. It has lots of Puppy info
but for now - you just hang in there and I hope she's able to come home in the morning ...and hugs to Gemma