[pawever Yorkie]

I have a litter that was born on 12.13.15 about 5days earlier than expected due date. 2 girls and 2 boys.
Everyone seemed fine except one tiny girl(less than 2oz )which looked very dehydrated and with hairless hind toes. She couldn't latch, so I tube fed her first 4 days and 1/2 tube feeding + 1/2 mommy for following week.
Esbilac and just born formula was way too strong for her to digest.
1 part goat milk , 1/2 water, 1/2 pedialyte with karo and nurtidrop was just perfect for her little tummy. She's been on 100% mommy's milk for about a week now, and slowly gaining weight(now almost 3.5oz)
she's been eliminating stool every 3~4 feedings, and color and consistency of stool was perfect, except starting yesterday color of stool has changed to dark green(normal consistency) I'm just wondering if she's over eating and can't digest the milk well.(I reduced her feeding to every 3~4hrs) Other than color of her stool, she's doing great. I'm taking her to the vet on Saturday, but I'd love to get some thoughts from knowledgeable ladies of YT. She was checked by emergency vet from Animal Medical Center which is considered the best animal hospital in the city, and the vet made a huge mistake and almost killed her, so I'd love to get some input from experienced ladies here before I meet with vet(Sorry to say this, but many of ladies here are more knowledgeable than many young vets out there!)
PS: Anyone know vet who's experienced with newborn in NYC area?

thank you