Hi Steph,
I'm glad your dad is beginning to feel better. It's amazing, isn't it, how quickly the chemo kicks in. As for radiation, I was scared before I started it, but found it to be completely painless. Have your dad try to start putting on a few pounds now, because its likely that as he progresses through treatment, he will begin to lose weight. Lots of shakes, smoothies, mashed potatoes, etc. Good luck to both of you and I hope treatment goes well.
Trish