A little over 4 months ago I drank an extra strength 5hr energy while a work. That evening when I got home I felt my heart racing and I was so scared that I went to the ER. They gave me an EKG the showed borderline My BP was up and so was my pulse. It eventually lowered and I went home after about 2hrs. I then scheduled an appointment with my primary doc and she said that I have pre-hypertension and should watch my diet. I occasionally have the quick "pin-*****" pains on the left side of my chest. She sent me to a cardiologist to have me checked out. He gave me an echo and a EKG stress test. The echo showed a mildly irregular heartbeat he said I shouldn't be concerned about. The stress test was normal. Since then, on a couple of occasions I have had sharp pains in my upper jaw, left triceps, elbow, right side of the chest. Since I have been eating and exercising regularly I never seem to notice these pains when I am exerting myself, only when I'm watching television or sitting upright on the pc or whatever. Is this heart related? Should I demand more testing from my doc? Advise please. Thanx