Welcome to BYC. She may have wry neck, also called torticolis, crook neck, or encephalomalcia, which can be due to a vitamin E and selenium deficiency. Are there vitamins in the electrolyte solution you are using? Poultry Nutri-drench is a tonic that contains vitamins, electrolytes, selenium, and amino acids. Selenium is found in eggs, and you can give a bit each day with another vitamin. Helping her to drink and eat are very important. Not all chicks survive this unfortunately, but some do.