We have a chicken who is very lethargic, staggers when she walks, and tail down. We were thinking possibly egg bound but cannot feel an egg at all. We have been giving warm baths and massaging with oil as if it were egg bound but I was wondering if it could be something else and a better course of treatment. She is a young hen just starting laying. Vent is not prolapsed nor is there a bad smell. Any ideas?? I hate to lose her. Thank you!