Chest tightness, pain, or pressure is one of the symptoms of asthma. But it is better that you undergo lab test, other than x-ray, to be sure whether you have asthma or not.
Asthma – tests that you may have to undergo
1. Peak Flow
3. Complete Pulmonary Function Testing
4. Bronchoprovocation Challenge Testing
5. Pulse Oximetry
6. Arterial Blood Gas (ABG)
7. Allergy Testing