odd behavior

So, a couple of weeks ago Macie had the stomach virus and was up all night vomiting. It was just that one night, but apparently it had quite an affect on her. Several nights later, after she was completely well, she got up about 11 pm and came running in our room terrified of something. It was like she was sick again yet she wasn't. She was just responding in fear to the possibility of being sick again. She was shaking and making no sense with her words. We couldn't figure out what was wrong. She kept apologizing and telling me she loved me. She would settle down and start to fall back asleep then out of nowhere start panicking again. It was bizarre. She was finally able to stay asleep and was perfectly normal the next day. I thought it was night terrors which is something young children get sometimes. She didn't quite fit that criteria. Well since then she has done it once more, basically the same thing only it made even less sense. Last night she woke us up, again around 11p. This time she was in the kitchen with the light on, getting a sheet of copy paper. Jeff got up and went to her and she was scared, but we couldn't figure out why. Hilarious!! She got in bed with us, went to sleep and woke up perfectly fine. This time she doesn't remember doing it. Too funny! We don't know what's going on.