What a horrible thing to happen to furrparents and furkid! I hope she will be ok! If she starts throwing up again get her to a vet and take the string with you so they know what they are looking for!

Some cats are known to swallow string. Its a fairly common vet proceedure to open up a furkid with a ball of string in their gut.

I am glad though that you pulled it gently out and hopefully *fingers crossed* got most of it.

I wish you all well