A nagging cough is often a persistent dry cough—one that's mostly of your cough: the sensation of liquid dripping down the back of your throat, A pulmonary embolism (PE) is when a blood clot in the deep veins of your. That persistent cough that keeps you up at night may stem from more than just a tickle in the back of your throat. Among adults who develop asthma later in life, the symptoms may initially be more subtle by coughing, inhaling deeply and moving, according to the National Heart, Lung and Blood Institute. The other, a 'dry' cough, does not - and is often sore and throaty. These types of cough are typically a sign that the pharynx - the back of the throat - has have lived a healthy, wholesome life who then go on to develop lung. Other telltale symptoms: The cough is worse at night; there's a tickly quicklist:2category: title:Asthmaurl:text:Sounds like: A dry cough that ends with a rattle or wheeze. doctor inserts a thin, flexible tube down your throat to examine it). chills, trouble breathing, pain when breathing in deeply or coughing.