Hypersensitivity Pneumonitis: Symptoms

Symptoms of brief or severe (acute) hypersensitivity pneumonitis often occur 6-8 hours after exposure to the foreign substance.

Symptoms may include:

• chills,

• fever,

• cough, and

• shortness of breath.

Symptoms of long-lasting (chronic) HP include:

• gradual onset of shortness of breath (especially with activity),

• cough,

• unusual fatigue,

• loss of appetite, and

• unintentional weight loss.