Mrs. Batty: "Well, I saw you for it last year! Don't you remember?"
Dr. Grumpy: "Hmmm. I don't see dizziness mentioned anywhere in your chart..."
Mrs. Batty: "It's the same thing, but a year ago I called it a headache. Except it's really not a headache at all. It's never been a headache. And I want to know why you didn't tell me it wasn't a headache in the first place. You're a doctor, and should know better."