Yay! Sounds like she got rid of the nasty stuff.
Please do look around - I don't think you want a repeat. And if it's something you can identify and remove from their space, that's the thing to do.
Sounds like she got into something toxic - perhaps ate something dead, which would be botulism
If she is not eating, it will be tough to give her anything to help.
On the other hand, if she's vomiting, she's getting it out.
@casportpony @Amykins I think may know some techniques for...