I have a white crested that is having several issues. he is 1 1/2 weeks old right now. I got him as a day old hatchling. When I received him, I noticed his head and beak were slightly deformed. his entire beak sits at an angle. one side of his head was almost flat. For the first few days I had him he would have seizures. He would tilt his head way back and his legs would just kick constantly. He is slightly smaller then the rest of my ducklings but he is eating and drinking well. he hasn't has a seizure in a few days. I'm hoping this is because he has gotten bigger and the head deformity is almost unnoticeable. The problem now seems to be his balance. he cant seem to stay standing long with out wobbling and falling over. He can turn himself back over. This happens most often when he is trying to groom himself. I don't believe this is a niacin deficiency. I make sure to give them the proper food and even add supplements to their water. The way he moves his head and neck around sometimes makes me think he is blind in one of his eyes. On the side that the deformity was on. Could this be the cause of his balance issues?