I suffer from extreme anxiety and can not deal well in public places so I only make myself go out a couple of times a week and thats only to the shop and back.
Im 37 and am over whelmed with anxiety which started as depression in child hood, my mother constantly had me at counselors which I hated.
Please just spend time talking things out with her, maybe give her a mobile phone and tell her to call you when ever these feelings occur.
You need to be there 24 hours a day to help, she needs to now she is not alone in this scarey world and that you are there for her no matter what.
I now if I had support 24\7 to talk my panic and anxiety attaks through Id make it through the day without crying.
Pull out all stops NOW, at 14 the action needs to be taken now, teach her to have quality of life.
I feel for you both, but shes so young and I now with love and support she can get better.
You are a great mum, just to have picked up her difficuties shows me you are able and deffinatly willing to be there and help her.
Its great shes got someone for the longhal.