Heartburn, dizziness to the point it feels like I'm going to pass out, arm tingling, heart racing, burping, can someone please help. At times it feels like I'm Dieing. I have been to the E.R. twice, once the kept me over night. They did an ekg, mri, stress test, sonogram of my heart, check my blood, check my thyroid and everything came back ok. I still feel this way everyday and this has been going on for the last 3 months now. can someone please help me.