Hello I am new to chickens and I have 2 Barred Rock Pullet 8 weeks of age 1 is showing these symptoms; she is stretching her neck out and yawning like something is caught in her throat. I checked her crop to make sure no foreign object. Her poops are normal and eating and drinking like always but today I hear her having a raspy breath every once and awhile but no rattling in the chest. Any idea on if this is a start of a respiratory issue. If it is what is the best course of treatment and should I treat both since they have been together since birth. I am using Vetrx in the water and tried scrambled egg with cinnamon and oregano yesterday but didn't help. She is a pet so culling is not an option. If you suggest antibiotics please let me know if there is an oral one or if an injection is the only way also where to buy it. I have no problem injecting animals as I have done it for my dogs forever. I was trying not to medicate my two pullets but if I have to than I will. I also have 2 week old Lavender Orps in a brooder and not near the Pullets. Should I be concerned for them?