One of my silkies just hatched and it has a huge lump on the top of it's neck about the same size as it's head. The lump sits right behind the skull. The lump feels firm and doesn't seem to cause pain when touched. Also, the same chick keeps trying to flip over backwards. The chick has high energy and seems normal except for that. Please help me! I don't have a working camera to take a pic with, sorry.