How do I know if my breathing disorder is serious?

Having trouble breathing can be a scary situation. If you have the following symptoms, you should contact your doctor right away.
 
-  difficulty taking a breath
-  shortness of breath
-  inability to get enough air
-  feeling winded when you try to exercise
-  continuous cough
-  cough that produces mucus or blood
-  pain or discomfort on exhaling
-  bluish mouth or fingernails
-  grunting when exhaling
-  sweating more than normal
-  wheezing
-  chest retracts with breath