Maya has not improved, so today she went to the vet, who pronounced her severely dehydrated and put her on a fast IV drip. Her illness is presumably viral, rather than something she ate, but in the past three days she’s gotten herself into a negative feedback loop: vomiting begets dehydration (especially if you can’t ingest water orally), dehydration begets more vomiting. She looks like hell at the moment, but she should be on the mend shortly.