Hi
@Valionz34 
Welcome To BYC
How old is she?
If she is of laying age - when was the last time she laid an egg - was it normal?
What type of food/treats do you feed?
How long has she been acting sick?
What is your weather like?
How long have you had her?
Lethargy, weight loss and sleeping while standing up can be so many things - check her abdomen for any swelling/bloat or feeling of fluid, look through feathers for any injury/cuts and lice/mites, feel her crop and smell her breath - any sour smell or soft/squishy crop?
Try to keep her hydrated - if you can find a vet that will see her, that would be best.