Tell me the signs and symptoms of COPD exacerbation?

COPD... Some of the signs and symptoms of COPD exacerbation include increased shortness of breath, increased cough, change in sputum color, decreased oxygen level, decrease in activity level, decreased appetite, decrease ability to sleep or an increase in sleep, headache, etc. If the exacerbation is due to infection, there may also be fever, chills, cold symptoms, etc.
Cough, sputum, The three cardinal symptoms of an exacerbation (flare up, worsening episode) are increased shortness of breath, cough, and increased sputum, or change in color of sputum beyond the normal day to day variation and requiring a change in treatment such as increased rescue inhaler, antibiotics and/or steroids. Severe exacerbations require hospitalization.