One of my cats, Cookie, has had diarrhea for a few days, and today she's been sick twice. Shes still been her usual self though, anyone have advice on what to do to get rid of her diarrhea and such?
I would seek veterinary attention. It has been going on long enough, and is getting worse what with the vomiting.
It is much easier and cheaper to treat the sooner you get to it.
Good luck.
I agree a vet visit is in order right away. Cats can develop severe problems if they go without food for several days...you didn't say if she is eating or not.
It could be something as simple as a bad case of worms. But maybe it is something serious, and the sooner she is checked by the vet, the sooner she will be feeling better!