So I went out this morning to find one of my New Hampshire Reds standing up like a penguin. She did try to eat. When I picked her up it felt squishy but swollen in her abdomen. Her vent is clear but it was a little messy. I started with 15 chicks last year and this is their second year. It's my first time ever having chickens, and even though I live in an area where there are lots of people that have chickens the vet doesn't see chickens. Any ideas of what might be going on. Do I leave her in with the rest of the coop. They have an 8x8 shed and it's heated with a heat lamp. It's closed up at night also. Help!