How will i know what does an asthma attack feel like and what does it feel like before the attack?

Terrible. : Asthma attacks are usually fairly quick in onset, though if you're asthma is not well-related it may be hard to tell what's an attack and what is just uncontrolled asthma. Symptoms are usually shortness of breath, coughing, chest tightness, feeling like it's hard to get air out of your chest, and you may hear wheezing. If these start abruptly, you may need prompt medical attention.