HELP! So I have some broody hens. 4 of them. Cochins and Polish mix. They are about 2 1/2 years old. Hatchlings from my orbital flock. 2 are doing great they have teamed up as new mommies and have 10 chicks between the 2 of them. These 4 hens are staying in the coop with fresh food and water daily. One of them has 3 chicks and the other one has 9 fertilized eggs and hasn't hatched one yet. Well these 2 hens have started wheezing bad!! It's scaring me to death! They weren't doing it this morning. No new chickens have been introduced. They haven't been out of the coop in almost 2 weeks. Fresh shavings, I clean up the large piles of poo. I gave them some bread with olive oil about an hour ago still wheezing. Although one of them too a massive poop! Help!!