I have a pup. A runt. I think the pup is suffering from Fading Puppy Syndrome. The pup is about a month old. She's really struggling to feed from her mom (to me it looks like she cannot suck her mom's nipples properly). And vomit almost everytime she feeds. She's really weak and also have diarrhea. Her pee is yellow in colour. There's blister in her belly which we treat with ointment. A friend drop the pup this morning cause she doesn't know how to take care of her. Really need your help and advise.