My cat vomited and is now acting weird?

My cat threw up and now she is acting weird. She seems tired and sluggish. She keeps "smacking her lips" like she has to vomit some more. In the beginning she seemed like she was having trouble breathing. I don't want her to go to sleep but she keeps trying. I'm mostly worried about there being something stuck in her throat but I can't see anything. There is no emergency vet here so I have to wait until morning. About 8 hours to go. Any ideas if shes ok, maybe just tired from vomiting?