Aw, shes a pretty girl. I was worried she had wry neck for a moment, but i highly doubt it (i did before to, the symptoms didnt seem like wry all that much) you should take her to a vet, and give her some electrolytes. Im not amazing with this sorta thing so I apologize i dont have much info, i...
Hi! Would you mind sending a picture of the pullet? Make sure she drinks lots of water, but dont force her to have much food, just enpugh for her to be alright of course, try giving her some electrolytes. Sorry this wasnt much help, i wish the best for her! :(