1-2 year Brahma hen -- fine earlier today, now moaning with every breath and sneezing several times/minute. Coldest night in MN last night (below zero), 10 degrees now. 2-room coop with indoor room heated (when below 20 degrees) and outdoor room adjacent with one screen wall, rest solid. She sounds awful! Has anyone experienced this? What should we do???? Thank you so much for your input!