Emma is still sick, even worse

This morning she vomited up hairballs, which was nothing to me because it's been a while since she's had any.

But just then she vomited up a LOT of PINK stuff, and I mean alot, all over the place, and it stinks!

What could this be?

I did switch her food last week, because I thought that's why she was getting sick before

My poor girl...