I was thinking about what you said about her hips looking wider. I don't know if this means some possible splay leg. That's where their legs go out to the side and it makes it hard for them to stand up. My duckling developed this when she was maybe 2-3 weeks old (I can't remember now!) and what I did was wrap her legs into proper position with vet wrap. I replaced the tape several times, but I kept them wrapped for a few weeks and as she had the vitamin B complex she grew stronger and they remained in proper position. You would have to have someone help you hold her up while you gently pull her legs into position with the vet wrap. Here is a video of my duck walking with her hobbles on after she'd worn them for awhile: