Whenever there is pain radiating from the left side of the chest, and extending over to the left arm, there is possibility of cardiac issue and the second ,most important problem is a cervical problem. Even a cervical problem can have pain radiating down to the chest ad down to the arm. Other issues are like hyperacidity like in Irritable Bowel Syndrome, Gastritis, Gastro Esophageal Reflux Disease, which is another reason why this symptoms can develop. When the pain radiates to the arm, rule out cardiac issues. If the pain is less than 5 minutes and it disappears after that, it could be angina pectora, which is relieved by sublingual tablets like sorbitrate. The other reason why you can have this kind of pain is the real heart attack. If you have severe pain with profuse sweating, vomiting and you have noticed that patients develop these symptoms after having food, heavy meal, then probably it is a heart attck.it does not come down after 15 minutes. It does not get relieved with any tablets.so then it requires medical intervention. Whereas pain related to the cervical, radiating down to the chest, or the arm, is a neurological pain, and it is usually caused by some bad posture like I had a patient who was regularly on the laptop, and a teacher who is looking up and developed this. So this way symptoms are there. There are also symptoms like Irritable Bowel Syndrome, then the gastritis can cause referred pain down to the arm.