Sometimes I get sudden shock at center of my chest which lasts less than a second.This comes without any dizziness or shortness of breath. But I can feel that shock which gives anxiety. I am also getting pulsating feeling between my chest and abdomen , especially after eating.I have taken echo two months ago and my doctor told that my heart is fine. But I am still getting this shock feeling without any pattern or any accompanied symptoms. I am getting this weekly once or twice. I am not sure if holter monitor for 24 hours will help.