Lethargic Chihuahua Pup -8 WEEKS

[CorineRS]

My fiance' went to a bad breeder I am guessing... And got me this doll of a tea cup chihuahua pup, but something does not seem right with her. Today is her first day in the house, she's NEVER been held, NEVER been out in the grass and is 8 weeks old. She shys from everyone, but me. She ate some, by hand feeding, drank a bit by hand feeding, and has spent her day sleeping, huddled scared in my lap. She was home for 6-7 hours before deficating, and it was watery stool. (NO URINATION) She is being fed the same food the breeder had fed her and yes it is understandable for her frightened behavior, and that yes puppies do sleep alot but not this much. She refuses to play, also understandable. I am really concerned with her being so lethargic and not deficating like a healthy pup would. I am taking her to a Veterinarian first thing in the morning, but would love any advice anyone has to offer to calm my nerves.

Thanks much,
Corine