One of my CM pullets got pecked in the head a few weeks ago. We got her wound healed, it didn't look too bad, just a nick that bled a lot. Since a few days after the head peck, she stopped laying and her comb looks shriveled, not plump and full like it was before. The flock will be a year old in May. I've checked them all for mites, lice and other creepy crawlies. Dropped a stool specimen off for a worm check. They appear free of critters and healthy. What could be the problem with this one girl? Not sure if the head peck even has anything to do with the shriveled comb and not laying.