22 year old male, pack a day smoker. Born with mild heart murmur but grew out of by age five. No symptoms of heart attack or angina. Pain is not associated with excercise or eating. Pain I would describe as an ache, not sharp without feeling of pressure. Occurs axp 4 -5 times per week over the past 5 weeks. No changes in lifestyle, diet, exercise or meds. Currently no medications, low activity level. So... I think I ve ruled out all the first things that come to mind. I am confident it is originating in my heart, not surrounding tissues. I am perplexed, help? No signs of heart murmur since age 5, has been checked with the past year. I had a pop about 3 weeks ago, not likely. Also I fairly fit, 155 lbs 5 9 . No stress, no GERD or Acid reflux. Had a peptic ulcer in lower stomach 2 years ago, treated no further related symptoms. I plan on seeing a doctor, but in my experience doctors have come closer to killing me then treating me.