Influenza is a contagious respiratory illness caused by certain viruses that infect your nose, throat, and sometimes even your lungs. People often mistake influenza for the common cold, but in many cases, the flu can be more severe. When you have the flu, you will typically notice various aches, a fever, and other possible discomforts. It spreads from person to person when someone who is infected coughs or sneezes. The droplets from their mouth or nose can travel through the air or land on surfaces around you. If you touch these droplets and then touch your nose, mouth, or eyes, you could be at chance of catching the flu.

While it is often more widespread during colder months, the flu virus is quite skilled at sticking around if given the chance. This is why it is good to be prepared, watch for any warning signs, and take appropriate steps to protect yourself and others. With that in mind, let us now look into five telltale signals that could indicate you have come down with the flu.

Fever and Chills

One of the first hints that you may have the flu is a sudden increase in your body temperature. A fever is your body’s way of saying, “Hey, something is off!” Most healthy folks have a temperature of around 98.6°F (37°C). When your temperature rises above this point, especially to about 100°F (37.8°C) or higher, you are likely running a fever.

Why do fevers occur? A fever often develops because your immune system is mounting a defense against invading viruses. Think of it like a small thermostat within your body turning up the heat in an effort to battle the flu virus. This higher temperature can sometimes be uncomfortable, but it serves a purpose. It makes life more challenging for the flu virus and helps your immune system do its job.

Chills: The Shivers That Accompany Fever

When your temperature spikes, you might find yourself shaking or shivering. Those sudden shivers are known as “chills.” They appear because your muscles contract to generate heat in an attempt to elevate your internal temperature. If you feel both feverish and chilled, it is a strong indication that your body might be waging war against the influenza virus.

If you suspect you have a fever, use a reliable thermometer to check your temperature. If you find that your fever is high or persists for several days, it is time to contact your medical provider. To make yourself more comfortable, drink plenty of water, get plenty of rest, and stay warm. Additionally, over-the-counter fever reducers may offer relief but do consult your pharmacist or a doctor for guidance.

Muscle Aches and Body Pains

Flu-related muscle aches often feel like a wave of soreness that spreads throughout your body—especially affecting your back, arms, and legs. These aches may range from mild to quite painful, making it difficult to move around as you normally would.

Why Does the Flu Trigger Body Aches?

When your body senses a threat, such as the flu virus, it kicks your immune responses into high gear. Part of this immune response involves releasing chemicals that can cause inflammation in various tissues. This inflammation often manifests as aches and pains.

How to Ease Body Aches

You can manage the discomfort of muscle aches by applying warm compresses to sore spots, taking a warm bath, or gently massaging stiff areas. Rest is also essential in helping your muscles recuperate from the stress of fighting off an illness. If the aches become too distressing, your doctor or pharmacist may recommend a mild pain reliever, so be sure to ask for advice.

Cough and Congestion

Another frequent sign of influenza is a persistent, hacking cough. Some flu sufferers describe their cough as dry and irritating, while others may notice mucus that can be tough to clear. This cough often pairs up with nasal congestion, making it difficult to breathe comfortably through your nose.

Since influenza targets your respiratory tract, it often triggers swelling and irritation in your nose, throat, and lungs. The linings of these passages become inflamed, producing extra mucus to help trap the virus. This leaves you with a clogged nose and may force you to cough as your body tries to expel the unwelcome germs.

If your nose is stopped up, a warm steam shower or inhaling moist air from a humidifier can help loosen mucus. Over-the-counter medications may also come in handy to reduce congestion. And do not forget to keep tissues close by—your nose may run frequently due to the extra mucus. If your cough worsens or lasts beyond a week, consult your physician. In some cases, the flu can lead to more serious chest infections.

Extreme Fatigue

Feeling unbelievably tired, even after a full night’s sleep, is a hallmark of the flu. This kind of fatigue is more than just being sleepy. It can feel like a heavy weight pressing down on your body. You might find it takes extra effort to carry out simple tasks, such as walking to the kitchen or taking a quick shower.

Your immune system works overtime to combat the flu virus, which can be draining. While it is true that every infection challenges your body, the flu can be especially taxing due to the wide-ranging impact it has on your system. When your energy is diverted to fighting an illness, you have less pep for everyday activities.

Helpful Tips to Combat Flu Fatigue

The key to reducing fatigue is granting yourself permission to rest. Nap when you can, and avoid forcing yourself to engage in rigorous activities. Keep your body well-fueled with nourishing meals, even if your appetite is low. Soups, broths, and gentle foods like oatmeal can provide the nutrients you need while being easier on your stomach. Last but not least, do not skip your fluids—hydration plays a big role in helping your body recover its energy.

Headaches

A throbbing headache is yet another sign that may point to the flu. Headaches tied to the flu can manifest in different ways. Some people report a dull, constant pressure in their forehead, while others experience sharp pains that come and go. Often, these headaches happen in tandem with eye pain or sinus pressure.

Why the Flu Sparks Headaches

When you are ill with the flu, your body produces a variety of inflammatory chemicals to fend off the invading virus. These compounds can stir up swelling or tension in your head and facial regions, which can lead to headaches. Plus, if you are dealing with nasal congestion, the buildup of mucus can create pressure, adding to the discomfort.

Easing Flu-Related Headaches

To find relief from a flu-related headache, be sure to rest in a dark, quiet room. This can help calm your nerves and reduce tension. You might also consider using a cool compress on your forehead or the back of your neck. If over-the-counter medicines are safe for you, you could try those, but please speak to a healthcare professional for specific instructions.

Summary

Fever and Chills: A clear tip-off that your body is waging war on the flu virus.
Muscle Aches and Body Pains: Often felt throughout your back, arms, and legs.
Cough and Congestion: Your respiratory system’s response to the invading virus causes extra mucus.
Extreme Fatigue: A total lack of energy that makes day-to-day tasks feel incredibly difficult.
Headaches: Triggered by inflammation and pressure in the head or sinus areas.

If you notice one or more of these symptoms, especially during flu season, you may well be dealing with influenza. When in doubt, reach out to a trusted medical expert for a professional opinion and possible testing.