Exhaustion, wooziness, loss of appetite , loss of weight, thirsty, blurred vision . I am a 61 year old female. I had a bout of flu that started 19 days ago, the worst subsided after 12 days, about a week ago. I m still having the aforementioned symptoms. Is it normal for some flu symptoms to persist for a period of time? Could the flu have triggered something more insidious?