I Have A 17 Year Old Daughter That Says She

I have a 17 year old daughter that says she is sick. Her symptoms are Nausea vomiting. Headaches numbness all over her body and pain. She has collapsed several times says she gets dizzy and lightheaded and she says that her body feels heavy. I have taken her to many doctors with no results. I as her mother have thyroid problems and there is diabeties on both sides of the family