jonezjollyfarm
Songster
Without a test or worms present in her stool there is no way to tell. It's a good idea to deworm them 2x a year as a preventative measure. Most do it in the spring and fall when egg production is down because most deworming products require a withdrawal period. That way you're throwing away less eggs. You want to be careful using a deworming product on a chicken that's not well because it could be too much for her frail body to handle. I would say if you've ruled out other problems like reproductive issues or intestinal blockages or crop issues (sour crop or crop impaction) deworm her but prepared yourself for it to go either way.