I brought home 5 new chicks of varying ages, from 3 weeks to 5 days. All came from the same flock owned by a friend. One of my littlest, only two days old when I brought her home, is not nearly as active as she has been every day until now. She seems exhausted, can't hardly keep her head up, beak is open, not necessarily gasping but breathing seems labored. Vent is not plugged and that has not been an issue. Ate fine and was drinking fine last night. I have them on medicated chick starter. Please help, this one is Pippy, a lavender Orpington, and happens to be my daughter's favorite, she's 11, and I really don't want her to come home from school and find her favorite is ill or worse.