Kitty- puking.. HELP!

It's the middle of the night and my cat Boots is puking.. I can't figure out why... I haven't changed her food she didn't eat more/less than normal and I'm super confused!

It's very liquidy and "chunky" but more liquid! She seems to have stopped now...

Just want your opinions please!

(PS can't contact vet it's like 12am and there are no 24hour vets in my area)

If it is just one time she probably just ate something that didn't agree with her or she may have eaten too fast. My cats puke on occation. I wouldn't worry unless there was blood or she keeps doing it.

It could also be a hairball.

Good.. I just had a panic attack because my dog was puking and it looked simialiar and a few days later we had to get her put down because her kidneys started failing and her body was shutting down.. and with my cats I'm like a parent! THey are my babies