why does my chest hurt, i think it s after i drink soda or after eating, i start to burp alot my upper body (chest is in pain), (also I am starting cough again - this happens not at different times i don t think it s related to my drinking soda, and once in a while my nose will start to run not alot, I will take over the counter cough med and it stops. I had the whooping cough shot, is this allergies? I never had allergies before so i don t know the symptoms, but friends tell me my coughing is so i should take allergy meds, but when do i?