Hello, I have an 11 month old silkie girl who was sitting on an egg but can't seem to control her neck properly! My first thought was Mareks's with her being a silkie but on examination there appears to be nothing else wrong with her. I put her on the ground to see if she could stand and she ran away shouting at me, so i caught her and checked her over, bright eyes, clean bum, shiny coat. I put her in a cat box and gave her some corn and she ate it, she managed to control her head enough to do that! Any ideas on what it could be??