The most common sign of pneumonitis is shortness of breath, which may be accompanied by a dry cough. If pneumonitis is undetected or left untreated, you may gradually develop chronic pneumonitis. This is especially common in cases of hypersensitivity pneumonitis, in which you may be continually exposed to a lung irritant without realizing it. Signs and symptoms of chronic pneumonitis include:

  • Shortness of breath
  • Cough
  • Fatigue
  • Loss of appetite
  • Unintentional weight loss

When to call a doctor

Call your doctor anytime you have difficulty breathing.

Jun. 03, 2011