I'm glad to hear she is doing better too. Personally, I doubt an injury would correct itself within a day on vitamins...I'd go with vitamin deficiency (could be from many factors outside our control, including malabsorption issues). Regardless, it's great to hear she's well. Good job!
Jody
If your baby is on medicated chick feed, change to regular. The amprolium is a thiamin blocker that I have found to cause nervous disorders like this in some chicks. The poli vitamins are good and keep them going for a couple weeks in the water. If this is a vitamin uptake issue, it will...