Hello! So i've wanted a Yorkshire Terrier all of my life and am finally getting one!!! Now i just have a few concerns. A co-worker of mine told me to be very careful with the puppy that i purchase and to make sure he is not from a puppy mill. I've actually met the puppy in person. He has one sister and both the sire and dam are on site. They are in the care of a retired woman. It seemed fine when i went to go see the puppy although it was a little freaky because she lives in a secluded area with no other houses around.
Anyways, the puppy was originally listed for $600 and after i talked to her, she was willing to bring the price down to $400. (Just to clarify, i am able to easily afford the puppy at full price but i am also a student and every little bit helps. Also, yes, i am fully aware of all the costs a puppy brings along - vet costs, shots, food, puppy accessories such as toys, crate, etc. and am fully able to comfortably afford the costs). So my co-worker said to me that if the woman brought the price down, she must own a puppy mill and that breeders or any responsible pet owners
never bring the price of a puppy down. :S
The puppy recieved his first vaccination and got de-wormed. He will be coming with one bag of the food he is currently on which is Nutrience Junior puppy food (good/bad?). When i was viewing ad's before i came across the one for my puppy, i noticed that most people were offering written health guarantees of either one or two years for their puppies. The guarantees were for either genetic or congenital (sp?) diseases. Is it bad if the woman i am purchasing my puppy from isn't offering a guarantee? In the last e-mail she sent me, she informed me that smaller breeds of dogs can become hypoglycemic if they don't eat enough and if it happens and the puppy goes into a coma (!!!!!

!!!!!) that i should put corn syrup and water in a eye dropper and feed if to him. She said that they usually ourgrow this problem at about 3 months of age. When i first read this, i just thought she was trying to keep me as informed as possible about everything. Although i thought this, when my friend read it, she told me to be careful and said that she may just be throwing it out there because she's had this problem with previous litters or with the parents and that she was just safeguarding herself. (Opinions)
Also, there is just one more thing i was concerned about. Should it matter if the parents of the puppy are not registered and therefore she does not have a pedigree?
Sorry for all of the questions! I know this is super long but i just wanted to make an informed decision and not do something i will regret later on. I really, REALLY want this puppy but i don't want that to bias my views on anything and i don't want to overlook problems that can occur in the future just because i've always wanted this breed of dog.
Please help me out! Thank you!