I have a 6 week old Salmone Favorelle chick. I have had her for 2 weeks, a few days ago her Easter egger buddy died. They were cage mates for 5 weeks and very bonded. I have no specific reason for the EE deat . She was not growing like the Favorelle and had legs issues from hatching. The Favorelle is clearly lonely and calms down when she is with me. I was treating both girls for cocci and they have a probiotic feed. Maybe I am overly worried but i have never had a chick this puffy in siz . She still has her chick down when she should have more feathering and she will not rest help wings at her side. She eats and drinks. I have fed her scrambled egg and there is vitamin in her water. Any ideas whats going on with her?