Which arm will pain during a heart attack ?

Sometimes if your lucky the left arm also center chest,abdominal pains and even pain in the jaw bones,that's where my pain was and my brother was in his chest and left arm.Some people mostly diabetics won't even have a symptom before an heart attack.Any pain in the upper part of your body that hurts when exerting yourself and eases up when you rest is a sign of heart problems.My Dr. told me most people suffer and die from heart attacks because they have these symptoms and they are in denial that it could be there hearts causing the pain and never get checked until its to late.Better safe than sorry.If you have little short pains in the arm or chest that just last a few seconds its usually not your heart.