question: I am 37' 5 10 I had a bad chest cold the second week of March and I still have the lingering cough.  My chest xray showed minimal hyperexpansion and i was a light smoker for about 18 years.  I had a chest xray back in December that was clear, i am wondering if the hyperexpansion could be from the cold and not emphysema. I still have chest pain on the right side of chest and had a normal nuclear stress test back in January. I would Ike to know what is going on!  Very frustrated and scared.