Health Conditions A-Z Infectious Diseases What Pneumonia Symptoms Feel Like Fever and cough are typical symptoms of this common lung infection. Here's what else to watch for. By Karen Pallarito Karen Pallarito Karen is a senior editor at Health, where she produces health condition “explainers” backed by current science. health's editorial guidelines Updated on July 31, 2023 Medically reviewed by Jane Kim, MD Medically reviewed by Jane Kim, MD Jane Kim, MD, is currently a medical editor and writer. She also consults on digital content for physician medical education. learn more Close gpointstudio / Getty Images Pneumonia is an infection of the lungs spread through coughing, sneezing, touching, or breathing germy air or from inhaling foreign matter into the lungs. There are various types of pneumonia, but the three main types are bacterial, viral, and fungal. It can be hard to know what pneumonia feels like since it typically presents with symptoms similar to other illnesses, such as coughing, difficulty breathing, and fever. Many types of pneumonia exist, and some symptoms can vary based on a person's age. However, pneumona symptoms are basically the same across multiple types. Overall, healthcare providers will need to use risk factors and patient factors in addition to symptoms to confirm a diagnosis of pneumonia and what caused it. Here's what you need to know about pneumonia symptoms. Common Symptoms Common symptoms associated with pneumonia include: Chest pain Chills Coughing Difficulty breathing Fever Nausea or vomiting Sweating Early Pneumonia Symptoms Also, pneumonia symptoms can appear suddenly or gradually (over a few days). Early signs of pneumonia may include:Dry coughFeverHeadacheMuscle painWeakness Chest Discomfort or Pain Chest pain is one of the most common pneumonia symptoms. You may experience sharp or stabbing pains in your chest. These pains can happen when you're breathing or coughing. Chills Chills may be a sign of pneumonia. If they also cause you to shake, the chills are known as rigors. Of note, walking pneumonia—which feels similar to a bad cold—may only result in mild chills, and chills may mostly happen in cases of viral pneumonia. Cough You can have a dry cough or a chesty, sputum-producing one. Sputum is thick mucus from your lungs, also known as phlegm. Bacterial pneumonia may present with a cough, including sputum that has pus or blood. People with viral pneumonia are likely to have sputum that is watery or comes with pus. Aspiration pneumonia happens when food, liquid, saliva, or vomit enters the lungs. Individuals with aspiration pneumonia may cough up foul-smelling, green, or dark sputum or sputum with pus or blood. Fever People with pneumonia can develop a fever, though it's more common in cases of viral pneumonia. At the same time, it's possible to not have a fever with the illness. Shortness of Breath If you have pneumonia, you may have difficulty breathing. If the infection is compromising your lung function, you may not be able to deliver enough oxygen to your blood. Some people require supplemental oxygen or treatments to help them breathe with pneumonia. Sweaty or Clammy Skin When your body tries to get rid of an infection like pneumonia, you can have profuse sweating or clammy skin. Even a person with aspiration pneumonia might sweat excessively. Pay attention if sweaty skin occurs with pneumonia: It can be a sign of sepsis. Sepsis is a potentially life-threatening complication of pneumonia that occurs in response to bacteria in the blood. Symptoms in Children Much like adults, pneumonia in infants, toddlers, and young children may include fever, chills, or labored breathing. Signs of breathing problems for babies specifically include: Bluish skin and lipsGruntingInward muscle pulling between the ribs when breathingNostril widening during each breathRapid breathing While you should watch out for the symptoms listed above in children, there are several less-specific symptoms to know, including: Abdominal painLack of energyLoss of appetitePoor feeding in infants who may then become dehydratedVomiting Pneumonia vs Bronchitis, Colds, and Influenza Diagnosing pneumonia requires healthcare providers' knowledge of your medical history, a physical exam, and diagnostic testing like blood or sputum tests and chest X-rays. Because pneumonia shares symptoms with other illnesses, it can be hard to tell which condition you may have. Below is a comparison of symptoms for pneumonia, bronchitis, colds, and the flu. What Does Pneumonia Feel Like? A Comparison to Other Similar Illnesses Pneumonia Bronchitis Cold Influenza (Flu) Chest pain or discomfort Yes Yes Yes Yes Chills Yes Yes No Yes Cough Yes Yes Yes Yes Difficulty breathing Yes Yes No Sometimes, as a flu complication Fever Yes Yes Rare Yes Nausea or vomiting Yes, though more common in children Rare No Yes, though more common in children Sweating Yes Yes No Yes Symptom onset Sudden or gradual Gradual Gradual Sudden Recovering from Pneumonia It can take one week to one or more months to recover from pneumonia. Many people may still experience tiredness for a month following recovery. Even when you feel better, consult a healthcare provider to determine your return to routine activities. When To See a Healthcare Provider If you believe you have symptoms of pneumonia, see a healthcare provider as soon as possible. Also, untreated pneumonia can be life-threatening. Seek medical attention for: Bluish lips or fingertips Chest pain Coughing that won't go away or gets worse Feeling worse following a cold or the flu High fever Shortness of breath A Quick Review There are many types of pneumonia, but they all share common symptoms, such as chest pain and difficulty breathing. Signs of the illness can vary across people of all ages, but it still takes time to recover from pneumonia. The lung infection can also look like bronchitis, a cold, or the flu. See a healthcare provider if you think you have pneumonia or if you experience serious symptoms like bluish lips or coughing that worsens. Was this page helpful? Thanks for your feedback! Tell us why! Other Submit 19 Sources Health.com uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy. Jain V, Vashisht R, Yilmaz G, Bhardwaj A. Pneumonia pathology. In: StatPearls. StatPearls Publishing; 2023. MedlinePlus. Pneumonia. American Lung Association. Pneumonia symptoms and diagnosis. Grief SN, Loza JK. Guidelines for the evaluation and treatment of pneumonia. Prim Care. 2018;45(3):485-503. doi:10.1016/j.pop.2018.04.001 File TM. Patient education: pneumonia in adults (beyond the basics). In UpToDate. UpToDate; 2022. American Lung Association. What is walking pneumonia? MedlinePlus. Sputum culture. Sattar SBA, Sharma S. Bacterial pneumonia. In: StatPearls. StatPearls Publishing; 2023. MedlinePlus. Aspiration pneumonia. American Thoracic Society. What is pneumonia? American Academy of Family Physicians. Pneumonia. Centers for Disease Control and Prevention. What is sepsis? National Heart, Lung, and Blood Institute. Pneumonia - symptoms. Nemours Childrens Health. Pneumonia. National Institute on Aging. Is it a cold, the flu, or COVID-19? American Academy of Family Physicians. Acute bronchitis. National Heart, Lung, and Blood Institute. Bronchitis. Centers for Disease Control and Prevention. The different between cold and flu. American Lung Association. Pneumonia treatment and recovery. Related Articles A Guide to COVID-19 Pneumonia Do I Have Bronchitis or Pneumonia? Pneumonia Cough: How It Might Sound Different From Other Coughs What Is Multifocal Pneumonia? Signs and Symptoms of Pneumonia Why Do Some People Die From Pneumonia? What To Know About Double (Bilateral) Pneumonia Experts Say White Lung Pneumonia is 'Nothing to Be Alarmed About'—Here's What to Know Is Pneumonia Contagious? What Is Walking Pneumonia? 7 Types of Pneumonia What Causes Pneumonia? Viral vs. Bacterial Pneumonia: What's the Difference? 4 Signs a Cough Is Getting Better—And When To See a Doctor What To Know About Bronchitis What To Know and Do About Lung Pain Newsletter Sign Up