Having Shortness Of Breath. Family History Of Heart Disease. Blood Test Done. Any Risk?

Question : I have been short of breath for some time, has sent me to the ER multiple times, not being able to get my breath. They tell me anxiety and send me to my doctor, I do have anxiety at times but no reason for it of late and this has not let up but has gotten worse. Now with ocular migraines, hard to breath even with anxiety meds and muscle relaxers, pain in left side of neck, behind ear and shoulder, bad weakness in left arm/hand and feeling like a belt is tightened around my ribs, sharp twinges of pain occasionally behind left breast and sore to press there.. Got real bad, my doc sent me to the ER again and this time the ECG came back different. Sinus rythm normal P axis, V-rate 50-99......Abnormal R-wave progression, early transition, QRS area>0 in V2, baseline wander in leads V2 V3. Rate 79, RR 759, PR 134, QRSD 80, QT 393, QTc451, AXIS...P 34, QRS 41, T 6, so doctor did blood work and said cardiac enzymes okay, cardiac section CPK 101 &102 (30-135), CKMB 0.84 & .86 (0-2.36), Troponin-i <0.012 to the first (0-0.034), Pro-BNP(B-Peptide) 34 (0-125). Hematology, WBC 8.5, RBC 4.82, hemoglobin 11.7 L, Hematocrit 37.3, MCV 77.3 L, MCH 24.2 L, MCHC 31.3 L, RDW 16.7 H, Platelet 400, MPV 9.0, NE% 67.7, LY% 22.4, MO% 5.7, EO% 3.5 H, BA% 0.7 L, coagulation, Protime 10.5 seconds, INR 1.0 to the first. My doctor, a PA, said the messed up parts of the ECG weren't important (I've never had an abnormal ECG/EKG before). Tech, did ECG 3 times, trying for normal and it was the same all times. He did hook me to a holter monitor for 24 hours, no results back from that yet. History, Dad, 3 heartattacks, stints, now congestive heart failure, 68 yrs old, first heart attack at 42, Grandfather (dad's dad) three major coronary heart attacks with triple bypass surgeries, dead at 69 from 4th and final heart attack, (dad's mom) diabetes, massive coronary from clot, dead at 74. Mom, arrythmia, heart stops while sleeping, very high blood pressure. My blood pressure runs very low to lower end of normal, was 103 over 52 at the hospital ER, I am 44, approximately 200 pounds, 5'4" but stout, middrift fat, mostly muscle. Move and restore furniture for a living, and run a farm, not idle much til here of late and even now still trying to work with breaks often for not being able to breathe, I also smoke little cigars but the shortness of breath made me put them down quick. I am scared and not very trusting of our small town hospital, please help