I am so sorry to read your post CC. It is so difficult to know what to say in such a situation. I understand to a degree how you are feeling at the moment, as my husband had a massive brain haemorrhage in 2008 and the drs said his case was hopeless. He was close to death on a number of occasions due to the stroke and subsequent complications, The fear grips your insides and it all seems so surreal, as the thought of losing your life's partner is just too painful to contemplate. However, the time you have left together (and who knows how much time each of us has), I am sure will be spent in the best way possible. We all have to face our mortality eventually, but your husband is so lucky to have you by his side. Your love and your devotion will help him so much in the days to come.
You seem a lady who will cover all the bases to make sure your husband receives the very best care. When my father was dying with brain cancer, I made sure everything was in place; pain relief, necessary nursing equipment (we nursed him at home) and anything and everything that would make this important stage of his life as comfortable as possible. My father died in my arms in his own bed, knowing that his loved ones had been by his side every step of the way. It also made things easier for those of us left behind.
I will remember you and your husband in my prayers and send absent healing to you both.
Take care of yourself as well because he needs you now more than ever.
God Bless.