How will you know if you have asthma?

Symptoms and testing: There is a lung function test called spirometry that may be performed by an allergist or pulmonologist in an office setting. It involves breathing into a device that measures the volume and speed of each breath, and comparing those values to a database of values drawn from non-asthmatic people. Asthma also presents with typical symptoms like cough or wheeze that worsens at night.

Symptoms....: Asthma symptoms include cough, wheezing and shortness of breath which occurs episodically. Once suspected, you need to be evaluated by your doctor and you may need pulmonary function tests since you can have a normal exam between episodes.There is treatment but no cure.