I see many wise and compassionate responses here. I don't feel I can add much though I would counsel you to not muzzle yourself in your relationship with your husband. It is difficult finding the best way to express how you're feeling but it's important to do naetheless.

In case it helps, here's a glimpse of my communication with my wife. I told her I feared my illness would drive her away and so I attempt to always present myself healthy and well. Her love for me, which I only doubt when I'm depressed, led to her embracing me and welcoming communication whenever I need it. She and I made an agreement that if she sees me falling apart she will let me know so that I can better cope since I so often try to hide it and fail to cope effectively.

a'best