Hello, Dr. Jain. I've just started working out after a while of not working out, and in the middle of the work out I felt like a huge ball of saliva is blocking my mouth and I couldn't breath, I also felt chest pain and started coughing for about 15 minutes. This happened to me for the first time, I'm 21 y/o old and I smoke. When I got home I immediately opened up my computer and googled ''shortness of breath'' and found this emphysema, do I have that?

Summarized question: Are breathlessness and chest pain symptoms of emphysema?