Hi, This doesn t sounds like heart pain, it s probably gastritis and reflux disease. Heart is usually exertional and if at rest it s very severe associated with sweating, pain in left arm, very alarming. However you should get an ecg and tmt test done to surely rule out heart disease. Avoid fatty, oily and high calorie diet. Have some walk after having food instead of taking rest. Have multiple small meals instead of heavy meals. Have regular sleep habits and avoid stress. Lots of green leafy vegetables, fruits, fish once or twice a week, avoid meat. Avoid smoking and alcohol if any. You can get prescribed antacid like tab Pantoprazole for your problem. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Sagar Makode