My daughter has had gastric symptoms since Tuesday. 1 day of vomiting with diarrhea, then 2 days of fever with no gastric symptoms, then yesterday and today is my concern. Her personality is coming through and seems a bit brighter, still weak needing help to the bathroom, but when she does need to move, she has abdominal discomfort then vomits. She does not have any fever for the last 1 1/2 days, and she has had sips of gingerale, bites of banana, and dry toast. Keep trying to push the fluids but only sips taken. My concern, is now that she seems bit better, she changes when she sits up or tries to move....lightheaded when she stands with abdom. pain and not knowing whats wrong. So I sit her down so she doesn t faint, then she vomits. Can you help me with my next step?