You seem to be suffering from RADS where in the airways become hyper sensitive, mostly following a chest infection-generally viral in nature and go into spasm on slighest of trigger like exposure to dust or smoke. You may have a feeling of tightness of chest and shortness of breath
. You may get a spirometry
done. Try nebulization with beta agonists like levoasthalin or take them as inhalers after consulting your doctor.