Page 1 of 2You're miserable: achy, feverish, and exhausted. Your head is pounding, and you're nauseated. All the tell-tale signs are there; it's the flu. Before you stock up on ginger ale and jump into bed for the week, you might consider phoning a physician, too. But how soon is too soon to call? Is it possible to wait too long?
It can be easy to gravitate to the extremes when you get sick: not calling the doctor regardless of how bad you're feeling or calling on the first day you feel ill. The best time to visit the doctor's office is somewhere in the middle, but first thing's first.
How Do You Know When You Have the Flu?
There are several types of the flu, but most strains of the virus produce similar symptoms: fever, nausea, coughing, sore throat, achiness, tiredness, chills and, sometimes in children, vomiting. Symptoms like aching, chills, fever or exhaustion, particularly—if they're severe—are more likely to be caused by the influenza virus. Vomiting and diarrhea in adults, often called the stomach flu, are actually viral gastroenteritis caused by one of many viruses, including noroviruses, rotaviruses and adenoviruses.
When you start to feel sick, take note of your specific symptoms. If your nose feels stuffy or runny, you are more likely to have a common cold. If you have mild pain or discomfort in your chest, by contrast, you probably have the flu.
Because the flu can feel like a very bad cold, it's no surprise we often have trouble telling the difference. Still, severe muscle aches or headache, lingering tiredness, and, especially, chills and fever are cues that you have the flu.
When to Seek Medical Help
As curious as you might be, it's not necessary to visit a health-care provider if you have the flu--or think you do. Certain symptoms, however, mean it's time for a visit:
Some physicians offer a flu test that can be conducted during an office visit, but these vary in accuracy. Because symptoms alone are usually enough for a physician to determine your treatment, don't be alarmed if a physician says a flu test is unnecessary or impossible. Flu tests typically need to be administered within 48 hours of the beginning of symptoms, so a test is not always possible.