hey, firstly I'm really sorry to hear what you have been/ are going through. (my mother only has suspected cancer and it's already hitting me hard)
i just wanted to say that i'm really glad you have people around you (your sons) to help you through it. being positive its probably the hardest thing yet one of the most important.
i hope he recovers fully or the best that anyone could hope he can. you're in my thoughts
xx