HI DOCTORS, I AM 34, HAVE BEEN SMOKING FOR 13 YEARS, VERY SLIGHTLY OVERWEIGHT BUT GENERALLY HEALTHY. I HAVE HAD THE FLU RECENTLY, NOW I HAVE EXTREME TIGHTNESS OF MY CHEST AND WHEN I SIT UP I AM FINE, BUT WHEN I RECLINE EVEN SLIGHTLY OR LIE DOWN, I CANNOT BREATHE, I COUGH AND HEAR CRACKLING SOUNDS FOR A FEW SECONDS AFTER I EXHALE, EVEN IF THERE IS NO BREATH ANYMORE. MY UPPER BODY MUSCLES ARE SORE FROM ALL THE COUGHING, AND WHEN I SIT IN FRONT OF MY TUMBLE DRYER THE STEAM COMING OUT MAKES ME FEEL BETTER. I AM OKAY BUT I CANNOT LIE DOWN TO SLEEP SO I AM GETTING SOOO TIRED. CAN I USE AN ASTHMA INHALER OR WHAT? THANK YOU FOR ANSWERING....