Thanks to all of you for the useful info.
I'm going to try to talk to her primary care Dr. today to see what he says.
She has had anxiety for about 2 years, so the Dr. is aware of it. There have been several trips to the ER, the Dr., and to the urgent care center. This is the first time anyone has tried to prescribe any meds for her, I'm thinking it is because of her age.
She will be going off to college next year, and I REALLY want this resolved before she leaves. I don't think I could send her if she is still having chest pains and shortness of breath.