Hi JonJon,
I'm sorry to read of the reoccurence of your Leukemia. It's a tough blow. I know, I am a Mama to a kid that whose leukemia is in remission nearly 9 years now. Even after all those years, that fear of a reoccurrence looms quietly in the back of my mind. You "sound" like you have a positive attitude for the treatment road ahead.
So glad that your sister is willing to be a marrow donor if necessary. It's ironic that living at Bethel she was able to see the error of the WTS blood policy. I am also hoping that you won't need her marrow, but knowing you have her in your corner must be a huge boost!
Best Wishes to you!
Andee