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11 possible causes of "Muscle pain, Fatigue, General..."
Symptoms:
  • Vomiting
  • Muscle pain
  • Fatigue
  • General weakness
  • Shortness of breath
  • Wheezing
1. Flu Overview
Learn about flu causes, symptoms and treatments.
Symptoms:
  • Headache
  • Muscle pain
  • Fatigue
  • General weakness
  • Shortness of breath
  • Rapid shallow breathing
2. 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:
  • Anemia
  • Muscle pain
  • Fatigue
  • General weakness
  • Shortness of breath
  • Arm pain
3. Polymyalgia Rheumatica
Polymyalgia rheumatica is an inflammatory disorder that causes pain and stiffness in various parts of the body. Parts of the body commonly affected include the shoulders, neck, arms, thighs, and hips. This disorder i...
Symptoms:
  • Difficulty in swallowing
  • Muscle pain
  • Fatigue
  • General weakness
  • Shortness of breath
  • Neck lump
4. 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:
  • Loss of appetite
  • Muscle pain
  • Fatigue
  • General weakness
  • Shortness of breath
  • Blindness
5. Sarcoidosis
Sarcoidosis is an inflammatory disease where granulomas (clumps of immune cells, usually macrophages) form in various organs. This causes organ inflammation. Doctors believe that sarcoidosis may be caused by an abnorma...
Symptoms:
  • Abnormal heart rhythms
  • Muscle pain
  • Fatigue
  • General weakness
  • Shortness of breath
  • Heart rate altered
6. Pulmonary Fibrosis
Pulmonary fibrosis is a condition that causes lung scarring and stiffness. This keeps the body from getting enough oxygen.
Symptoms:
  • Difficulty breathing when lying down
  • Muscle pain
  • Fatigue
  • General weakness
  • Shortness of breath
  • Increased urination
7. Diabetic Ketoacidosis
Diabetic ketoacidosis (DKA) is a serious complication that stems from diabetes. If you don't have enough insulin to help your body process sugars (glucose), your body will start burning fat to fuel itself. As a result...
This condition is considered a medical emergency. Urgent care may be required.
Symptoms:
  • Blood tinged sputum
  • Muscle pain
  • Fatigue
  • General weakness
  • Shortness of breath
  • Coughing up blood
8. Parrot Fever (Psittacosis)
Parrot fever, also called parrot disease and psittacosis, is very rare. According to the Centers for Disease Control and Prevention, there have been fewer than 50 confirmed cases per year in the United States sinc...
Symptoms:
  • Chokes when swallowing
  • Muscle pain
  • Fatigue
  • General weakness
  • Shortness of breath
  • Feels hot to touch
9. Polio
Polio (also known as poliomyelitis) is a highly contagious disease caused by a virus that attacks the nervous system. Children younger than 5 years old are more likely to contract the virus than any other group...
Symptoms:
  • Ataxia
  • Muscle pain
  • Fatigue
  • General weakness
  • Shortness of breath
  • Confusion
10. Legionnaires' Disease
Legionnaires' disease is a serious type of lung infection, or pneumonia. It is caused by bacteria called Legionella. The bacteria and the disease were named following an outbreak of the infection at a Philadelphi...

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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