Mike
Don't beat yourself up. Pete has the right perspective (in more ways than one). You simply could not beat my diet for the last 20 years (organic, 99% vegetarian, home cooked, etc) nor exercise routine : running (nice times you posted btw. I'm still proud of my 3:15 Marathon time and 33 min 10K) and fitness. Never got a cold, nor flu, nor headache. Last surgery was before college (arm broken in high school "red dog" pileup on me for clotheslining a far too larger opponent) Haven't eaten any sugar or honey or high fructose corn syrup for 15 years. Do Yoga, Pilates, meditation and think as positive as all get out. Result: very aggressive cancer. Think about the future brother, not the past.