DJ, I can totally relate to what you're going through. Ever since I quit smoking, all I worry about is my health. Now I realize I'm a hypochondriac, but I really didn't fret too much when I was a smoker. Actually, I used to say dumb sh*t like, "Oh well, if I die, I'll die happy!" while puffing away on my deathstick. Some days I do wish I could go back to my blissful bubble of ignorance, but I know quitting has improved my health, so there's no way I'd go back to smoking.
I wish I had an answer, I really do. I think you just have to tell yourself that you have no control over this type of thing. You have no say in life and death. I am not completely over my fear and anxiety, but I think it's getting better in time. Talking to my boyfriend helps. He shakes some sense into me when I freak out over little things.
I check on him every night to make sure he's still breathing. He's 26 and in pretty good health, but I obsess over his well-being because I love him so much and don't want to lose him.
I think we need to realize that we don't know what's going to happen and there's no point in fretting about it. The anxiety isn't worth it. I know it's easier said than done, but really, there's not much else we can do unfortunately. I guess we just need to find a way to accept and move on?