Well, what do the Doc's know? They know your heart is NOT going to blow up in your chest...that is for sure. And, as you've had more than enough med testing, they are incredibly sure that you, simply, do not have much to worry about with regards to your heart health. If you remain kind to your heart with exercise and a moderate, overall, healthy diet and don't smoke at all or drink too much, during your life, you should be AOK - heartwise:) Congrats! Now get to working on what is causing the, overwhelming, majority of your struggles - anxiety / health anxiety!:)
Of course, I'm joking around some....I know you understand you have anxiety issues or why else would you be here on The AZ. But, the other not joking part, is that your peace will come from you seeking out a healing path for your mental health challenges and your lasting relief will not, likely, come from further medical intervention. You have had all the definitive testing for your heart. Your Docs would not have missed something sinister....especially since you've had MANY tests. Don't fret about having all those tests...pretty common when struggling with health anxiety / anxiety. But, understand that a viable healing path requires acceptance, ultimately. Eventually, you will have to move away from the near continuous reassurance seeking that plagues many HA peeps, when struggling, and you'll have to learn how to trust (some, in the beginning....more as you move down your healing path:). Doubt is so very pervasive with HA. We, even, lose trust in our most powerful ally - ourselves. Anxiety can make us feel as if we really don't have the ability or control or strength or direction to be the major, overall, definer of our well-being. We do, though, and this is where we begin to find a way away from the dominance that anxiety can hold over our daily lives, at times.
I was a 'dead man walking', myself. I was 99.9% certain that my heart was gonna explode in my chest. Or, that my ticker was gonna just stop beating while I was sleeping (uh...that can cause MAJOR insomnia:) I was a ragin' cardiophobe. Avoided exercise as much as I could as I was afraid of a heart attack. Walked around fearing every flip, flop, 'extra' beat or jolt my heart would make (PVC's). I struggled, mightily with panic disorder, also. But, that was 28 years ago (when it all began) and I'm still here...alive and kickin'. And, my heart is as strong as it ever was (and it was ALWAYS strong, anyway:). I exercise 6 days a week and tax my heart with pretty rigorous cardio. Sure, I still get PVC's. here and there....most of the world gets them, at times. In an other wise healthy heart (which you have, per your Docs and med testing:), there just isn't a concern over "skipped" heart beats or over a heart that races once in a while. Chest tightness is one of the more common anxiety physical manifestations....this feeling can move up into our throats, too, and can cause even more worry. All harmless...except to our amped up minds, which inturn help create MORE physical manifestation (more racing heart, more PVCs, more tingling, etc). But, we know this already...we know anxiety can exacerbate and create symptoms. Yet, we continue to peg our overall feeling bad to a physical disease or ailment rather than accept that our major issues is our mental health. Acceptance is crucial. Acceptance doesn't come easy, at all....as we also know. Most of the time we have to attempt to embrace actions and habits and mindsets that are positive eventhough we are STILL skeptical...STILL doubtful....STILL scared....STILL panicked....STILL afraid to exercise, etc. It doesn't tend to work the otherway around....our fears and our worries and our fret over our future doesn't go away BEFORE we find the strength, someway - somehow, to move away from counterproductive measures. These measures (fall-back to actions, repeat bad habits) have to be heavily curtailed (or totally stopped) in order for us to move well down a lasting healing path. Quick fixes are just that - quick. They are fleeting, at best. And, soon (very soon, usually) we are back at seeking MORE reassurances....googling, internet story searching, more doc visits, more med testing, major checking of our own vitals, more avoidance of things that can amp our anxiety, etc. Been there - done that. I can tell you it doesn't work....never has - never will for anxiety / health anxiety.
Anywho, your heart is fine. They didn't miss anything. Don't you miss the chance to move away from medical intervention:)
What do you do for your anxiety currently? What have you done in the past? How long have you struggled with anxiety issues? Have you ever been diagnosed with a serious health condition?
There is hope and help:) Remember I was a 'dead man walking'....I cannot impress upon you how certain I was that I was going to be a 'short-timer" here on Earth. Not true. Anxiety chirping (rather LOUDLY, I must say)...but I have always been and continue to be overall pretty darn healthy (like most HA peeps:)
Peace and Feel Well:)