She's pooping some stuff not sure wat it is but it moves
Your dog has parasites in his stool. You should take her to a veterinarian as soon as possible, since her situation seems really urgent. Your veterinarian will perform relevant tests and give your dog the proper treatment to make her healthy again.
If those worms are tapeworms, as they are intestinal parasites that absorb the nutrients of the food, they cause severe malnutrition in dogs. Hence the importance of the internal deworming of puppies. Your veterinarian will give you the product to eliminate them, to use it follow your veterinarian's instructions. There are worms that are difficult to remove and some of them are very persistent. Unless veterinary prescription says differently, you should repeat internal deworming at least every 3 months.
It is very advisable to take a sample of the worms to the veterinarian so he can see what type they are.
All the best.