I am a 48 y.o. female, have a long family history of heart disease on both sides of my family and have high cholesterol. I have a 40% blockage of the LAD, a left bundle branch blockage, and a 30% blockage of the Circumflex. (ER physician said the blockages were 70% and 60% but IVUS cath said 40% and 30%). I have a calcium score of 420. I do not experience pain w/ exertion. I have told my cardiologist repeatedly about abnormal heart beats that cause dizziness. I experience pain in my left arm, pressure in the center of my chest and throat, pinching in my jaws, ache under my tongue, and pain between my left shoulder blade and spine. He thinks the pain is something other than my heart. He has sent me for testing on every organ in my body and found nothing except for the CAD. Why does he doubt this is a heart problem?