We have 4 chickens in our brooder. 3 days ago our ISA brown jumped and hit the screen at the top of the brooder fairly hard (screens 20 inches or so high). After she hit it she started acting lethargic. She isn't wobbly yet but she closes her eyes often while typically standing upright. 2 days ago I noticed she's got drool around her beak. She's still eating and drink but nowhere near as often as our other 3 chicks. We have been giving her electrolyte mixed water starting yesterday. Has anyone had something similar? Were not sure if the leap is causing the symptoms or if she's just sick.