What Causes Chest Pains, Tightness And Burning Sensation In Arms And Thighs?

For over a month I've been having chest pains, tightness and burning sensation. It runs down my left arm and also in my left thigh. It happens when I'm resting, stressed, upset or walking and sitting. I went to a cardiologist and he said my blood pressure was high. He sent me for EKG, ECG and a Echo Cardiac Stress test. All were absolutely normal. EH gave me blood pressure pills and has attributed my symptoms to either heart burn or muscular. But I still feel terrible. Pain comes and goes every day all day. What can I do? I'm 46 female and my grandfather died from heart attack and there's a history of heart problems in my family. But my cardio thinks I'm crazy. He didn't find a need for further testing, but I'm in constant pain.