I have a silkie that is about 10 weeks old and went out to check on them and she was lying in a corner with her neck bent under her body. She can straighten it out some but keeps going back to putting it under her body and laying down that way. she almost looks like she is scratching her stomach but then lays down and stays with it tucked underneath. She was fine yesterday and will eat and drink if we place it right in front of the food/water. Could it be an injury or is it a disease? There is no broken skin or other visible signs.