I have 3 week old brahmas and one is sick!! She won't walk around, she kind of leans to the one side, and she is breathing hard. I found her last night like that. I thought she was just cold and if I warmed her up she'd get better. I keep them outside on the covered porch in a cage. I have a light on them at night and during the day I turn it off being that we have been in the 90's here. Last night I was gone till late and a storm blew thru so the temp dropped. She felt cool when I picked her up but she has warmed up since and she is still not looking good. What could be wrong?? Is there anything I can do or give her to help her out??