David, I am truly sorry that you are having so many problems with your radiation. I just don't understand why some suffer so much and others (myself) so little. I admire your fortitude and clarity of thought considering the misery you are experiencing.
A friend of my parents used to say, "With patience, perseverance, and a little sweet oil, this too, shall pass." In your case, I hope that it is successful, 'cause it sure has been an endurance contest.
Best,
Bill