Asthma is a condition in which your airways narrow and swell and produce extra mucus. This can make breathing difficult and trigger coughing, wheezing and shortness of breath.
Asthma can't be cured, but its symptoms can be controlled.
Shortness of breath
Chest tightness or pain
Trouble sleeping caused by shortness of breath, coughing or wheezing
Severe asthma attacks can be life threatening.