I'm not, and I think you'll drive yourself crazy if you start worrying about something that may or may not happen.

Even if it does, God forbid, options available now may be completely different than what would be available 5 or 10 years in the future anyway.

I think it's not only futile, it's fatalistic to worry about recurrance to the point of researching possible treatment options. You're just finishing up a major battle...savor that. Savor the chance at a new beginning rather than pondering the future.

Just my opinion, your milage may vary
Wayne