Labored breathing please help

[Easter eggers]

One of my hens is having a hard time breathing. She has raspy breathing and then she gos bezerk and she streches her neck and makes a crazy noise. Have any of you experienced this? Plus she and the other girls got into some medicated chick starter but the other girls are fine.

 

[DaughterOfEve]

I doubt the med. chick starter did anything. Maybe crop impaction which goes with the neck stretching and breathing discomfort.

 

[seminolewind]

Gapeworm? Yes, impacted crop? Or respiratory problem?