Fever or chills
Cough, especially with mucus or phlegm
Shortness of breath
Chest pain that worsens when breathing or coughing
Fast breathing
Fast heart rate
Fatigue or weakness
Sweating
Nausea, vomiting, or diarrhea
Confusion, especially in older adults
Bluish lips or fingertips
Symptoms that are getting worse instead of better
A doctor can confirm pneumonia with an exam and chest X-ray