Welcome to the group. The best suggestion I got was to take notes and journal. I went thru very similar as your husband. Getting my thoughts on paper gave me peace. Plus, i would keep a medical journal so i could get all my questions answered and keep track of my treatments and improvements.
At one point, I made up a matrix of recovery tasks (medicine, food, faith, meditation, sleep, exercise, etc). I would score myself every day on the different activities and give myself a treat for high scores. Kept me busy and feeling like i was making progress.
This group has been wonderful and helpful for me. Please ask whatever is on your minds.