Have a year old buff orpington that's lethargic. Extremely pale comb. We just dewormed the whole flock w safeguard pellets and honestly all the combs are still pale..... I feel like were doing something wrong all of a sudden bc we keep losing chicks. All have been acting normal except we are not getting any eggs. One will start acting lethargic and then die or we will just find them dead. I have lost about 7 over past 6 t0 8 weeks. Any help will be appreciated?