My one year old Barred Rock Hen is very ill. Last week I noticed she was shaking her head once in a while, but didn't think much of it. Last night I noticed she's lost a significant amount of weight, she's lethargic, and has some kind of "plugs" over her ears. I gently removed the plugs from her ears and noticed swelling but not much else. I also noticed bumps around her wadle area. The most frustrating part of all this is that I'm a Vet Tech and no matter how much research I do I can't figure out whats wrong with her. All three hens stopped laying about three weeks ago, but I attributed this to me placing the Rooster. Two months ago I did "worm" all the chickens with Panacure. Does anyone recognize these symptoms? And Thank You in advance.