So I have a beautiful barred rock hen who is about 7 years old who for the past almost 2 weeks has symptoms that I can't figure out what it might be. She has *breathing with her mouth slightly open, sometimes neck stretched other times not * can hear rattling/ heavy breathing when I pick her up to give her VetRx * don't hear anything when she's down on the ground * sneezes once in awhile * shakes her head sometimes * no nasal or eye discharge * her comb looks fine * she still has a good appetite and likes her treats * is active I have been giving her VetRx for a week now at night and also in water. I add basil and other herbs to their feed. I've looked down her throat and didn't see anything. Any guesses?