I've wasted so much of my life worrying. I really wish I could get it back, but I totally agree. I find that most people don't worry about stuff that I do and it makes me even feel more like a freak.
The thing is, I actually have something to worry about now and I'm not obsessing or worrying like I do when I have nothing to worry about. Its times like this that make me look back and say, man, look at all the great times I missed when it was nothing and I was healthy.
I am not "unhealthy" now, per se, but I do have a condition and facing some pretty invasive tests. I'm anxious, yes, but not obsessively worried, missing work to stay in bed, going nuts, worried.