What is the definition or description of: mild shortness of breath?

See below: Shortness of breath (sob) could be mild, moderate or severe. Sob could be due to many things including anemia, asthma, congestive heart failure and infections like pneumonia and bronchitis. Tests that may need to be considered include a chest x ray and ekg. The first step is to take a good history.

Description...,: Shortness of breath is an unpleasant sensation whereby the patient feels they are not getting enough air. It can be mild, moderate or severe. When mild, the patient has no shortness of breath at rest but experiences the shortness of breath with increased activity. This patient has no difficulties with activities of daily living, like getting dressed. Shortness of breath should always be evaluated.

Shortness of breath: this is just an abnormal awareness of breathing