I have a friend who writes almost compulsively. I think she's motivated by the combination of her brilliant mind and an inability to be idle, despite constantly struggling with her health. Her writing is captivating, as I'm sure you'll agree.
We're all a little like this a little of the time. Chiller keeps plugging along, despite the setbacks, slowly, surely. I feel a bit like this sometimes - albeit without the seriousness of her setbacks to really know what it feels like.
Maybe re-emergence is possible. It was for someone far more seriously ill than I've ever been.