An upper respiratory infection usually starts with a scratchy, dry feeling in the back of your throat, followed within a day or two by nasal congestion, a runny nose, and a general sense of fatigue that makes you want to stay on the couch. Most people describe feeling “run down” rather than severely ill. The whole experience typically lasts 7 to 10 days, with the worst symptoms concentrated around days two through four.
How the Sore Throat Feels
For most people, the throat is where everything begins. It often starts as a tickle or raspy dryness, as if your throat hasn’t had water in hours. Within a day, that tickle can sharpen into a burning or scratchy pain that flares up every time you swallow or talk. Drinking warm liquids like tea with honey or broth can temporarily ease the rawness, but the discomfort tends to come back quickly in the early days.
The reason your throat feels so raw is inflammation. When a virus lands on the tissue lining your throat, your immune system sends blood flow and immune cells to the area. That response produces the classic signs of inflammation: redness, warmth, swelling, and pain. The swelling is what makes swallowing feel like pushing past a tight spot, and it’s why your voice may sound hoarse or muffled even before congestion sets in.
Nasal Congestion and Sinus Pressure
Once the infection spreads from your throat into your nasal passages, your body ramps up mucus production to trap and flush out the virus. The result is a stuffy nose that may alternate sides, a runny nose that seems endless, and a thick, heavy feeling across your face. Many people feel distinct pressure behind their cheekbones, across the bridge of the nose, or above the eyebrows. That pressure can produce a dull headache that worsens when you bend forward or lie flat.
Your ears may feel clogged or muffled, too. The tubes connecting your middle ear to the back of your throat can swell shut during a URI, trapping fluid and creating a sensation of fullness or even mild pain. A warm compress placed over your nose and forehead can help relieve some of the sinus pressure, and sleeping with your head slightly elevated keeps mucus from pooling.
What the Cough Feels Like
A URI cough typically starts wet and productive. Your body is generating mucus to fight the virus, and your lungs respond by trying to push it out. You may feel the mucus sitting in the back of your throat or upper chest, and each cough brings up thick, sometimes discolored phlegm. This is normal and actually a sign your immune system is working.
Later in the infection, as the mucus production slows, the cough often shifts to a dry, irritating tickle. This version doesn’t bring anything up but can be persistent and exhausting, especially at night. The dry cough can linger for days or even weeks after your other symptoms have cleared. That’s because the inflammation in your airways takes longer to resolve than the infection itself, leaving the tissue sensitive and easily irritated by cold air, talking, or deep breaths.
Fatigue and Whole-Body Effects
One of the most noticeable parts of a URI is how tired you feel. It’s not just sleepiness. It’s a heavy, whole-body fatigue that makes routine activities feel like effort. Your muscles may ache mildly, and you might feel chilled even in a warm room. A low-grade fever (typically under 101°F) is common, though many URIs don’t produce a fever at all.
This fatigue is your immune system redirecting energy. Fighting off a virus is metabolically expensive, so your body essentially tells you to slow down and rest. The tiredness usually peaks around the same time as your worst congestion and sore throat, then gradually lifts over the following days. Some people feel a lingering low energy for a week or so after the acute symptoms resolve.
How Symptoms Change Day by Day
The first day or two usually involve the throat tickle and a vague sense that something is off. By day two or three, congestion and a runny nose dominate, and fatigue hits its peak. The sore throat may start to ease around day three or four as congestion becomes the main complaint. Coughing often intensifies around days four through six, even as your nose starts to clear. By the end of the first week, most symptoms are fading, though the cough and mild fatigue can trail behind for another week or more.
Not everyone follows this exact pattern. Some people get hit with everything at once, while others experience a slow build. But the general arc of sore throat first, then congestion, then cough is the most common progression.
How It Feels in Babies and Young Children
Infants and toddlers can’t describe what they’re feeling, so their symptoms show up as behavior changes. A baby with a URI often becomes irritable, feeds less than usual, and may seem unusually sleepy or inactive. You’ll notice a runny nose and cough, and very young infants (under six months) may have brief pauses in breathing lasting more than ten seconds. Reduced feeding is one of the earliest and most reliable signs, since congestion makes it hard for a baby to breathe and suck at the same time.
When Something Feels Different
A typical URI feels unpleasant but manageable. Certain changes in how you feel can signal that the infection has moved deeper or that a bacterial infection has developed on top of the original virus. A fever that spikes above 103°F, chest pain or tightness with breathing, shortness of breath that wasn’t there before, or symptoms that improve and then suddenly worsen after a week are all signs worth paying attention to. Thick, discolored nasal discharge lasting more than 10 days without improvement, or severe facial pain concentrated on one side, can point to a bacterial sinus infection rather than a simple cold.