8 months ago I started having chest/shoulder pain, light headdedness, nausea and some palpitations. I have been to the emergency room many times thinking it was a heart attack but always negative. Have seen a GI specialist, had endoscopy and colonoscopy, both negative. Heart cath showed a 30% blockage in one of my arteries but no stint. Have changed my diet, quit using smokeless tobacco and dropped 20 pounds. None of this has relieved my symptoms. Also had a sonogram of my carotid arteries, all clear. Currently I am taking Lipitor, levothyroxine, aspirin, and zantac 150. Pretty much eating fruits and vegetables, water and some turkey or chicken. Symptoms usually happen after eating. Nothing has helped and I m desperate as this is affecting homemand work.