To the vet we go

My cat had diarrhea this morning. She has never, as in NEVER in the four years she has lived, had diarrhea before. There was a glob of bleh in her litterbox Monday, but I thought it was an attempt at throwing up a hairball and she was just nice enough to do it in the litter box. However, this morning the box was full of globs, there was diarrhea on the floor and she'd been going back and forth a couple of times while I was still half asleep. She was screaming to be let out so I let her out (before I discovered the mess in my bathroom) and she came back in again very quickly. Afterwards she was floppy and just... she didn't seem very happy. She seemed out of battery and drained and she drank a lot of water. So I called the vet and have an appointment in 2½ hours. My mom was nice enough to say she'd come here and drive us there so I don't have to take a cab (it takes over an hour by bus, despite being ten minutes away by car, and when she already hates vets and need to be doped to even let them look at her it's just not a good mix) which is good. I am not sure I could afford a cab, really, but damn if I don't take care of my cat even if I have to break into my meager savings. Now I am keeping a sharp eye on her and hope she doesn't start feeling worse while I wait.