I can relate in the sense that news stories about anxiety or depression always seem to come up with something to scare the anxious/depressed person with HA even more. I also can relate to the fear of death, I have thought about it just like you, but logically coming up with two somewhat comforting scenarios still doesn't seem to reach the emotional part of the brain. Past experience tells me that meds/therapy/time or some combination thereof should make it all go away, because it has done so before for me, though it seems to be taking more time to get better this time around. I guess the only thing to do is to keep in mind the logical thoughts that all the stuff going on is the anxiety talking, not your heart (after you have already been checked out and given the okay) and to accept weird symptoms can happen all because of anxiety. Meanwhile you can do whatever it takes to overcome it in terms of meds/therapy, eventually something will work, and then time is good as you get past it and the fears recede. I remember the first time I had a panic attack and anxiety/depression I had all kinds of weird palps, chest pains, and stuff going on, and I am still here 25 years later. I don't have too much of that particular stuff going on right now (thankfully), just other stuff, it seems anxiety can morph in new directions when it returns, so for me now its more stomach, tingly arms, stronger depression, and fatigue (well the latter was actually always a problem with this stuff) rather than heart stuff for this round. You will get past this eventually, and your heart is not going to give out. Also any of those "studies" that come out with bad news for us should be viewed with skepticism at best, they often are poorly designed and find weak correlations that may not really reflect cause and effect situations anyway. I think the sensationalist news just likes to print them to scare people, it gets ridiculous after a while.