My 15 month old Speckled Sussex, "Mother", began sitting on eggs for the first time 8 or 9 days ago. Yesterday I noticed her comb was not upright, but was sagging or flopping to the side. It's a bit pale, too, but not too bad. I put vitamins in the water closest to her and made a note to up the frequency of high protein treats for her. Today when she left the nest she seemed a bit frantic, moving quickly and vocalizing a lot. She went to the porch where she is accustomed to get treats and stayed there a few minutes. I went in to get her a treat and when I returned she had blown out a stinky broody poop, but very liquid with chunks in it. Looked like vomit as much as poo. (sorry for the graphic description). This afternoon she is back to sitting on the nest quietly. Since she became broody she hasn't been very interested in food or water, even when I deliver it. My other broody takes shameless advantage of the food delivery service and chows down most of what I give her, so I don't know if Mother's lack of appetite is normal or not. And the other broody has a tiny comb that couldn't flop if it tried, so I don't know if that is normal or not, although Little Chicken's comb did become pale. What might the floppy comb signify, and what should I do to help her?