Having read many of the posts here, I'm fortunate to have a good prognosis... however, I still can't get over having the Big "C", and occassionally find my mind wandering into dark places like my surgical resection may not go so well.

I can reason that I'm not a fotune teller and that this is just typical of the mind sometimes being its own worst enemy, but why does it do this and are thre any tricks any of you have used to stop it?