Our 1.5 year old Buff Orpington is fighting for her life. She didn't put herself to bed, and after 3 hours of searching in the dark, we found her gasping for breath. She is routinely stretching out her entire neck, wheezing very loud, and every 30 seconds or so actually coughed violently. We have her inside on a heating pad. Please any thoughts or suggestions, from a very very worried chicken mom.