Thanks for placing your query here.
I can appreciate your concerns about the daughter.
I strongly feel the child needs to be seen by a gastroenterologist (an expert dealing with problems of food pipe ,stomach & intestines).
She most probably needs an upper gastro intestinal endoscopy
for confirmation of diagnosis.
Crohn's ds is unlike but can't be ruled out without appropriate investigations.
Hope I have answered your query.
If you have any further questions I will be happy to help.