new chicken owner here, i have a 6 month old americauna/red sex link, gretel, that is (still) laying beautiful eggs daily for almost a month. 3 days ago i noticed a blue tinge to her comb and wattle and the area around her face, and an incresed shaking of her head. no other symptoms. yesterday i noticed her poo was a bit runny, and there seemed to be a bluish spot on her comb. still shaking her head. she was eating and drinking and otherwise acting normal. today she seems to have more labored breathing than my other 2 girls. i.e., her mouth is open, theirs isn't. her breath is a bit faster. there seems to be a teeny base of white to her wattle and comb now, alongwith some dark spots at the tips of the comb. her crop seems to be more full than the other 2. she is still shaking her head. she is on a mix of starter feed (bc the other 2 girls arent laying yet) and organic layer feed that has a dewormer in it. help please... what do i need to do? thank you.