Dear doctor My age is 31 years actually I had a habit of smoking from 2003 to 2012 after that I had quit that habit now am getting heart pain occasionally and once I consulted doctor he said that its a gastric pain. But my doubt is already I have a habit of smoking, for that reason am thinking that the pain am getting because of smoking and am afraid of in future I may get any heart attack because of smoking habit in the past. Now my question is today onward how to maintain my health either by exercise or by diet to not to get heart attack in future, so please suggest me and now what is the treatment for occasionally am getting chest pain Thanking you.