My mother (78 yrs. old) had an episode at my home yesterday. She was sitting here, got warm, took off her sweater, extreme yawning, slurred speech, vomiting. She has had a dry cough for about a week or so now. She was admitted to the hospital, all kinds of test, nothing is showing up. She s not really hungry, they just today did a flu swab. Any feed back would be greatly appreciated.