She looked like she couldn't support herself/stay balanced to scratch her head 
and we have weighed her and she has lost 2-3lbs . She hasn't eaten her breakfast and now won't even eat normal food with her powder in it. Can cats who have their kidneys starting to fail go down hill quickly?
I feel so stupid for being so worried about her, she is only a cat and DD is poorly as well, but she is my baby.