How can I convince myself that My heart is ok?! In the past month I've been to the ER twice, have had countless ekgs, blood work, and seen a cardiologist. They all say I'm fine. I have an echo next week but the cardiologist says he's not worried about anything. So then why do I worry about it day and night?! I keep thinking that maybe they are missing something or maybe I developed something in the past month! I know it's so irrational but everyday I feel like I might drop dead. My chest hurts, my left arm goes numb or hurts, I get dizzy or short of breath. I'm on meds and in therapy but I know that ultimately it has to come from me. How do you guys overcome these thoughts and feelings?