My 2 weeks old ducklings were outside for some grass today. It started to rain so I gathered up three of them to put in their box and one of the runners managed to jump out of my arms. She fell about 4 feet on her back. She can walk but doesn't want to, she would rather lay down. She's not interested in food but has been drinking water. She also threw up all the stuff she had eaten outside. Poor thing. She's back in the brooder under the light and just seems to want to sleep. I felt her all over and cant find anything out of place or distended. I know I have to wait and see but do you think she will be OK?