Welcome to Healthcare Magic Since you are a smoker, you will be at risk of getting heart disease like heart attacks as well. You need to stop smoking. Regarding chest pain it could be due to variety of causes, like muscular pain, trauma to chest wall, pain due to possible gastro-oesophagitis, heart attack pain as well. Do get a complete checkup for the above mentioned conditions and also get an Electrocardiogram to look for heart problems. Avoid fatty, fried, junk food. Eat plenty of fresh fruits and green leafy vegetables. Drink enough water. Exercise moderately everyday like brisk walking.