my fav cochin started acting very reclusive last week - thought it might be age since we inherited her, but she's also getting weaker. today i went out and found her in a very low nesting box and one side of her face/eye is swollen and greenish. also, the side of her upper body is also swollen. when i picked her up, she weighed less than a shoe! here's a photo of the bad eye: and one of the good eye: can anyone have recommendations to help me get her better? do i need to take her to vet?