Hmm...very strange.
This type of deal happened to me this previous summer. Long story short: A short series of surgeries left scar tissue, which was later infected with gang green. We took too long getting to the hospital, and were informed that if we had waited any longer, I would have been dead in hours. Of course, there is more to it than that, but that's the gist.
I definetly took some time after I got out of the hospital to re-think everything. In my eyes, I did die. The doctor shouldn't have noticed anything in the x-ray. It was just luck.