Has anyone ever seen anything like this before? This is my first time raising chicks. She is about 10 days old and noticed this two days ago. Based on its size you would think that it took longer than one or two days to develop, but we have been monitoring these chicks very closely since we got them. This thing popped up out of nowhere or two days ago. She still eats and drinks and does not even have runny stools. However, we have now noticed that she cannot stand up straight or walk in a straight line anymore. Does anybody have any advice on what this could be or what I should do. The black mass is very hard and is now developing soft pussy sacks around it. My vet said she'd see her, but for a pretty ridiculous fee.