I have a buff orpington, roughly 2 years, I bought her at around 18months. weight not known. She seems extremely well, eats fine, still laying etc. But she is wheezing loads (has done since I had her) and her eyes seem swollen. She is generally happy, but when she does the "screaming cluck" its not as loud as the others and always sounds chesty. Her poop is normal, but she has always had a messy set of "trousers" (as I call them). She is fed on layers pellts, corn, scraps and fresh water. as well as any bugs she scratches for. All chickens are wormed regularly, and bed is cleaned out regularly, and once a month I use jeyes fluid to kill any parasites that may live in the home. I use sawdust and hay (not straw) but I did try using just hay and no straw, which made no difference. Is this normal symptoms for a buff? She is my only buff and none of my other orpingtons, pekins or mixed breeds show these "symptoms" Thanks in advance!