We have a hen that has intermittent symptoms. It happened yesterday and then she was normal and happened again early this morning. She is a Momma hen. Chicks over a week old and healthy. The hen sticks her beak up towards the sky then looks like she is gasping for air while laying in the upright position. Comb is pale, but not blue. No discharge of any sort. Eyes look good. Once in a while will kind of flit around like she can't use her legs. My daughter-in-law is a large animal Veterinarian. She decided to try her on Baytril we already had, as a desperate measure and after she gave her the Batril, she gently stroked her back. She started to relax, a little color came back to her comb. She lifted up a little to let the chicks in. Then my daughter-in-law went to listen to her lungs and she struck out at her like normal for a protective hen. She listened and her lungs were clear. Then she got up and walked away to her little hen house after she got a little fluid and was mad. Now seems absolutely fine. Earlier we were sure she was dying. We are just not sure. Please help.