hi,some involuntary exhalation of air, slight cough for last 2 weeks, after 4-5 weeks of bad cough(1 week of penicillin ),no mucus , more cattarrgh. more at night , in the middle of speaking , and then , without notice , a push of air/ slight cough, and the words come out funny, all the family are laughing. of more concern , is for the last week, a slight discomfort / pressure, below left clavicle , 2/3 inches from sternum, and pain in side of neck, especially when bending down. also, when coughing, the pain in the neck hurts.please help!