My goose started looking sick yesterday morning. She is off balance and if she is bumped or tries to stretch her wings she falls down. She is eating and drinking but nothing is coming out the other end like she isn't processing her food. She still has a full crop from yesterday. She is talking more today and is walking around but still off balance and still nothing decent coming out the other end. She is a Toulouse about 7 1/2 months old and is not laying yet. Any ideas?