My head is spinning, I've read a ton of posts on worms, bloody poop, and respiratory problems and I don't know if what I'm dong is right. Here it goes: The chickens are 3 months old. Last week I heard just a little sneezing from 1 of them but that seemed to subside but then blood showed up in one chickens poop. Just a little so I went and wormed with Wazine17 for 1 day. That seemed to help. (I free range my chickens a few hours a day, this is the first time I wormed them) now I've got one sneezing and her poop is really runny with a tiny bit of blood and she had some clear nasal discharge that smells. She's acting normal, eating and drinking. I added Duramycin yesterday when I saw the nasal discharge bc that is what I had. One of my other girls who is showing none of these symptoms and whose poop is fine has been opening her mouth and gasping for air. This is maybe once or twice a day. Should I be worried about worms or change antibiotics? I'll attach poop pictures with my phone in a different post. THANKS!!!!