I truly feel for you, my flock has Mycoplasma and Infectious Bronchitis and dry and wet pox. :-( I have lost three chickens in the month of December and one is currently in the ICU crate with severe wet pox and two outside have bubbles in their eyes from the MG. I’m so tired and sad…the last one died in my arms on Christmas Day and it was so hard and I’m just so sad. I have spent $100s of dollars on meds, vet visits, and vitamins, I make them special eggs with yogurt and vitamins, I clean their water all the time, and just bought MORE supplements today. I just feel like I’m never just enjoying them anymore, I’m always stressing about them and watching them struggle to live :-( It sounds like you are being the best chicken mom they could ever ask for and I’m sure they love you so very much!