According to a story released today she hit her head on a tree and was shaken up too bad to walk. If she had a bad concussion I could see her not being able get out on her own. She says every time she'd go to take a few steps she'd get woozy and collapse. In that case, and I'm proceeding on the assumption that she's being truthful, staying put probably gave her the best odds of survival. It worked I guess! She stayed by a stream bed but as dehydrated as she was I wonder if it was kind of just mud?