I had similar symptoms a while back. I was diagnosed with hypertension and high cholesterol. I also had minimal pain near my heart. Start by checking your blood pressure at Wal-Mart. If abnormal, go to any "free" clinic near your area. You'll probably pay about $40 plus whatever exams they run on you.

I got rid of my symptoms by exercising and eating lots of nutritious foods. I stopped eating stuff like cheeseburgers, burritos, chorizo, chiles rellenos, fries, pizza.....etc