Acute Hyponatremia

Patricia is a 68-year-old female presenting with confusion and nausea over the past 2 days. My husband noticed I started acting strange about two days ago. I was getting words mixed up, forgetting what I was saying mid-sentence, and just not making sense. I also developed nausea that has gotten progressively worse — I've vomited three times today. Your task is to take a focused history from this patient.