Something wrong with simmy....

Hi guys
I have an isa brown hen unsure of age but she does lays eggs...well she used to.... over the last few days she has become very lethargic and isn’t eating or drinking... she doesn’t walk around much kind of just stands there in a hunched position... she doesn’t even “bock” much... this is a chicken that used to be very sweet and social... I also had to clip away a lot of soiled feathers from under her tail as they were all stuck together and washing them didn’t achieve much... the last egg she laid was “wrinkled”.... any ideas

Can you bring her indoors to keep a close eye on her and keep her comfortable?

If you feel around her vent, does it feel like there's an egg stuck there? I haven't experienced hens being "egg bound" myself, but I've heard that you can use a warm water soak and a lubricated finger to gently help the egg pass. Googling the phrase will yield more info/suggestions.

I did have one hen with similar symptoms, whom I brought inside to care for. She perked up for a couple of days, but then went downhill and was clearly dying. I put her out of her misery then opened her up, and found she had tumors all around her abdomen and internal organs. There would have been no saving her.