Sounds like she just had too much too quickly and wasn't used to it. Same thing happened to me over the summer. I felt like I was dying. I felt like I couldn't breath and everything was all distorted and I even started dry heaving. Not cool.

But it happened with my own weed that I paid for with my own money.

As still somewhat of a newbie myself, the trick is to take it easy until you're comfortable with the effects of weed. It can be real trippy at first, if you're not used to it. I've learned that if I start feeling anxious to just sit back and listen to some good music while taking deep breaths. After a few minutes of that, I'm back in the warm embrace of weed again with no worries.

My advice would be to try and hook her up with her own weed. Then she won't keep using yours and she can experiement around with it on her own. Give her a referall to your dealer or something.