Well, I hadn't checked her for parasites in the last three years and she does go outside occasionally, so it's a possibility. Any change in the internal environments going to freak out the parasites, even if it doesn't kill off that many.
Next vet's visit I'll remember to say something about her behavior change and see if there's something he needs to check.
She's back to her normal self so, I'm not going to fret about it but from now on, it's going to be melted ice water from the convenience store. Plus some magnesium and Iodine occasionally.
I doubt a cat's internal environment is hospitable for candida. Cat's don't like Sugar and carbs and their temps are different. i'll have to research that angle just for kicks.