You have some stupid doctors my friend!
They may be right, you are ok for being 25... but you won't live to see 40 going down that destructive path.
Do you smoke cigs or weed?
http://www.smokeawayonline.com I see this one TV all the time. Cancer is not something to be taken lightly. At the very least, the doctor should be sending you for chest Xrays and an EKG, you could have pulmonary edema, bronchitis, a heart problem or who knows what else.
I have heard of 27 year olds having heart attacks, don't become a statistic dude. My dad passed away at 41 from a massive heart attack. Over medication related. Prevent it if you can.
Go to the ER if it's really bad, go to the doctor regardless.
