I'm so sorry you lost Clarabel...I'm sure she knew that she was loved and cared for when she crossed.
We've all gone through this...and nothing gets my feathers in a twist more than, "So what? It was just a chicken." You won't get that here.
Oh darn...Have you tried some gatorade? or make a mash of the chick crumbles and gatorade together and give it to her on a spoon.. That way she'll get the nutrients together with vitamins and electrolytes. You could also try putting her in a warm bath. That might make her poop a tiny bit...
Good...