Hi Sandy, like Jack said "think positive".
It took me a year to make a decision. I knew I had to do something because of the speed my little alien was growing at, but knowing you have to do something and wanting to do something are entirely different. My treatment day itself was a non event but the relief I felt when it was all over and behind me was immense. I'm coming up to 3 months post treatment and feel completely as peace with my decision, no more worries!
Try not to worry about regrowth or cancer down the road related to your AN. I had that same concern until I put it in perspective - you could have any number of other serious health issues develop over the years, long before anything further develops with your AN. Every time we get in a car and drive on a freeway, we put ourselves at risk for an accident. We face risk everyday. Focus on the positive - you are moving forward and all will be good!
Best of luck,
Cathie.