Gosh, your situation sounds all too familiar. My husband was diagnosed just over two years ago. He's been through so much that I never dreamed a person could go through. I too struggled with fibromyalgia for several years and my husband was right by my side, supporting me all along the way.
My husband is Jim also. He is taking his chemo here at home. He can't even get out of bed without my help. He sleeps a lot. I miss him so much, even when he's right here next to me.
I don't even know how I feel sometimes. It's so hard. My heart goes out to you. I understand. You hang in there, okay?