I have 4 hens and a rooster for 3 years. One of the hens is sick. She’s weak, can’t jumps to top of roost to sleep. I see her eat, drink, but her crop isn’t emptying. she’s really really thin now. I put her in a separate cage in my house. I took her to a vet, confirmed she didn’t have worms, gave her scrips for amoxicillin and cisipride with instructions not to give her solid food for couple days. I gave her water and probiotics and electrolytes with a syringe. She seemed to be better, so I put her back out with the chickens 3 days ago. She’s still sick, so I’ve got her in the house with me again. She’s so thin. Can anyone help me with advice?