As someone who started sufferig when I was 8, I have seen how hard it is on parents.
She is stlill young and still could "out grow it". However, you may want to consider getting her some therapy as it could also possibly progress. This could at least help her enough to get to school.
I know I always felt sick before going to school and personally deal with nausea from anxiety daily. I know my dad always told me peppermints would help calm my stomach. Now when I am stressed I put one in and can sometimes instantly feel more calm. So maybe buy her some mints, or minty chewing gum. Also, ginger pills help and soda water.
As for school, she just has to know she has to go. It's up to you to decide when she is really sick (as in, actual virus) and just anxious. Sometimes, after I got there and got my day started I felt better. I realized it wasn' that bad. One thing that helped me was being involved in something I loved that made school worth it. I was in band, so I wanted to go to school to atted that class and it helped me force myself to face my anxiety.
Whatever you do, be understanding. At her age she is probably close to knowing her fears are irrational. I know I still beat myself up over how "silly" or "stupid" this all is. We know, but it's hard to control. Just be as supportive as possible, She can get better.
“Happiness can be found even in the darkest of times, if one only remembers to turn on the light.”
“We are the girls with anxiety disorders, filled appointment books, five-year plans. We take ourselves very, very seriously. We are the peacemakers, the do-gooders, the givers, the savers. We are on time, overly prepared, well read, and witty, intellectually curious, always moving. We pride ourselves on getting as little sleep as possible and thrive on self-deprivation. We drink coffee, a lot of it. We are on birth control, Prozac, and multivitamins. We are relentless, judgmental with ourselves, and forgiving to others. We never want to be as passive-aggressive as our mothers, never want to marry men as uninspired as our fathers. We are the daughters of the feminists who said, “You can be anything,” and we heard, “You have to be everything.”