Suggest Treatment For Abdominal Pain And Fever

Hi my daughter had abdominal pain earlier in the day which later went away. She just woke up calling for me and was shivering and crying. She seems disoriented. Her body temperature was 96. The only thing wrong that I could think of is she had a hamburger earlier today which was in the freezer but I m thinking it could have given her a problem. We at one point had a refrigerator in Our garage in the winter and the freezer didn t work well at the time. I had moved everything into our regular freezer. Maybe the burger was not good anymore and that s what is making her not feel well? Any opinions? She has not had vomiting or diahhrea.