I can't honestly say I've gone that long, but I am rarely ill, and when I am it passes quickly.
I've had a couple of doctors who thought that my birth date was wrong in their records, and were blown away to discover that it was indeed correct. All my markers are consistent for someone considerably my junior.
That's nice... May the force stays with you ;)
For myself I had probably that much drugs given to me as a baby/child that I wont be sick for the next couple of lives... hehe.