If she is taking fluids from you and eating on her own then I wouldn't go down the tube feeding route for the moment, especially if you don't feel confident about it. There is no point in forcing something that may not be necessary.
Not that I disagree with Kathy - her advice is excellent, and well worth listening to. She has a wealth of hands-on experience that means she really knows what she is talking about, but if your girl is continuing to eat and drink enough (if Kathy says 90ml of fluids per kilo / 2.2 pounds per day then that is what you should be aiming for) with or without your help, then that should enough, without having to do anything more invasive.
However, should your girl stop taking fluids and you feel that tube feeding her is the only option left then follow Kathy's instructions and you shouldn't go wrong.
Don't forget that although fluids are more important than food, a wet mash or other wet foods are providing both things at once - hydration and nutrition, so as long as she will eat, don't try and force pure liquid on her.
Have you seen any results from the wormer you used? Any other developments or ideas about what she may be suffering from? Are there any new symptoms, or has she improved in any way? Any info that you can add can only help us to help you.
Whatever is wrong with her, I wish you all the best for you and your girl - keep us updated.
I am not sure what happened, maybe it was just too late. Is there any where that I could take her that would tell me why she passed? I do not know of a vet for chickens in my area. I live a little south of Tampa, Florida.
