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Fever
Fatigue    
General weakness    
Shortness of breath    

23 possible causes of "Fever, Fatigue, General weakn..."
Symptoms:
  • Loss of appetite
  • Fever
  • Fatigue
  • General weakness
  • Shortness of breath
  • Pain
1. Cold and Flu Overview
Overview Colds (common colds) and the flu (influenza) are contagious infections that affect the respiratory system. Both are airborne illnesses, spread through coughing and sneezing. Colds typically are confined to th...
Symptoms:
  • Pleuritic chest pain
  • Fever
  • Fatigue
  • General weakness
  • Shortness of breath
  • Pain
2. Chronic Bronchitis
Your bronchial tubes are responsible for delivering air to your lungs. When these tubes become inflamed, mucus can build up. The coughing and shortness of breath this causes is known as bronchitis. People often develo...
Symptoms:
  • Back pain
  • Fever
  • Fatigue
  • General weakness
  • Shortness of breath
  • Joint pain
3. Lung Cancer Overview
Learn the types of lung cancer, and read information about lung cancer symptoms, causes and treatments. Continue reading!
Symptoms:
  • Headache
  • Fever
  • Fatigue
  • General weakness
  • Shortness of breath
  • Muscle pain
4. Pneumonia
Pneumonia is an infection in one or both lungs. The infection may be caused by fungi, bacteria, or viruses. Pneumonia causes inflammation in your lung's air sacs, also referred to as alveoli. The alveoli fill with flui...
Symptoms:
  • Difficulty in swallowing
  • Fever
  • Fatigue
  • General weakness
  • Shortness of breath
  • Neck lump
5. Infectious Mononucleosis
Infectious mononucleosis, often called "mono," is caused by the Epstein-Barr virus (EBV). It typically occurs in teenagers, but you can get it at any age. The virus is spread through saliva, which is why some peopl...
Symptoms:
  • Increased appetite
  • Fever
  • Fatigue
  • General weakness
  • Shortness of breath
  • Lactose intolerance
6. Cystic Fibrosis
Cystic fibrosis is a recessive genetic disorder that can lead to serious complications or even put your life at risk. It may cause severe problems in the lungs, pancreas, liver, and intestine. It is an inherite...
Symptoms:
  • Loss of appetite
  • Fever
  • Fatigue
  • General weakness
  • Shortness of breath
  • Headache
7. Tuberculosis
Tuberculosis (TB) is a potentially fatal contagious disease that can affect almost any part of the body but is mainly an infection of the lungs.
Symptoms:
  • Change in voice
  • Fever
  • Fatigue
  • General weakness
  • Shortness of breath
  • Stridor
8. Small Cell Lung Cancer
Your lungs are two sponge-like, air-filled organs located on either side of your chest. When you inhale, your lungs absorb oxygen and send it to the bloodstream for use by your cells. Carbon dioxide, a waste product o...
Symptoms:
  • Bitter taste in mouth
  • Fever
  • Fatigue
  • General weakness
  • Shortness of breath
  • Coughing up blood
9. Getting a Handle on Aspiration Pneumonia
Aspiration pneumonia is an inflammation of your lungs and bronchial tubes. It happens after you inhale foreign matter. It is also known as anaerobic pneumonia. This condition is caused by inhaling materials such a...
This condition is considered a medical emergency. Urgent care may be required.
Symptoms:
  • Abnormal heart rhythms
  • Fever
  • Fatigue
  • General weakness
  • Shortness of breath
  • Heart rate altered
10. Pulmonary Fibrosis
Pulmonary fibrosis is a condition that causes lung scarring and stiffness. This keeps the body from getting enough oxygen.

This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.
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