Hello Tikibaby,
when a cat grooms itself it also licks up the hairs so i think it is just a hairball that is bothering her to counter that give her a serving of so called cat grass when they eat that it is for cats indigestible so they have to throw up to get rid of it but that will take the hairballs also along so it keeps their stomach clear of obstructions and your cat will thank you for it and it also keeps them from taking house-plants apart to get to the same results.
Good luck
dutchman