3 nights ago I awoke in the middle of the night with shortness of breath, coughing
, pain in my lungs and some white foamy phlegm
. It lasted for about 4 hours. When I awoke in the morning it was gone though my lungs still felt stressed. Last night it happened again, not as bad as the first time but still very scary. There have been no unusual changes in my diets,habits or environment.I do not excersize regularly, I am 5ft 3inches and 124 pounds.I have been smoking regularly for 12 years.