I have an 11 week old Salmon Faverolle pullet who has weak legs. She got lost in 100 degree temps for a day about 4 weeks ago and when she returned she was very dehydrated and weak. She could not open her feet well and was off balance. I gave her electrolytes and she recovered after 2 days, but she now stumbles and is often off balance. Today she seems very unstable and puffed up. She's eating a little, but very lethargic. Any ideas on how to help her perk up? I've been giving her vitamin b12, but it hasn't made any difference.