Ted,
I've had the experience of wondering what the hell is wrong and wondering if I will ever really get well, let alone back to the shop. Now I'm pretty well back to fully functional.
But now everything is upside down trying to figure out where my wife and I are going to land due to her precipitous descent into cognitive decline. So, the thought of ever getting back to the world of sticks, strings, wood, workshop, workbenches and tools is rapidly evaporating. Here I am, physically able with both feet firmly planted in midair, not knowing how or where to land. So, I feel ya brother.
Don't give up the ship. Our goals look pretty much alike.
Avoiding despair in the near term looks like one foot in front of the other, a step at a time, and not giving up!
Or as my dad used to paraphrase "Sufficient unto the day are the evils thereof", 'and the rest can wait 'til tomorrow'.
You have all my sincerest hopes and prayers for a good outcome!
Pete