Currently 17 this year and have started smoking about a year or two. ( which I have totally regretted) . I have stop for a month or so in between but because of stress and peer pressure carried on. So I decided to stop once and for all . I stopped smoking for around 3 days already and during this three days or so. I have experienced shortness of breathing and pain near the chest area. I googled more about this and found that this might be symptoms for lung cancer... Really need someone advice, btw I only smoke around 4/5 sticks a day