I would like some advice please regrding one of my hens(Warren) about 2 years old, she is not eating but still drinking, tail is down and neck withdrawn, I have examined her and the crop area seems very soft, she appears to be heaving like she wants to vomit, I have held her upside down and gently massaged her neck and crop area and she discharged a fair amount of fluid, she does not appear to be eggbound.Any advice would be appreciated, we have not had any eggs from her for a long time and she did have the same symptoms about 6 months ago, I massaged her neck then and she appeared to be on the mend but no luck this time.