question: For the past week i have been having fluttering in my chest off and on usually in the morning but now it is throughout the day. My heart beat seems normal, than I get this one off beat and it seems as though it's coming from the center of my chest not the left side just the center, and then I usually cough. It's not a dry cough but a mucus type cough. After the cough I feel tired and somewhat dizzy.  I have also been sneezing more than usual. Along with the sneezing there is a runny nose and the feeling that i'm not getting enough air in my lungs, I have been quite stuffy also. I am a 42 year old and female.