Dear Mark,
I have been cautious to check in on the story status because I was afraid of finding bad news. So sorry to hear your illness. I am also dealing with some cancer related issues. The scariest thing I ever heard from my doctor was when he said he was referring me to an ONCOLOGIST.
I have a very rare case of Basal Cell Carcinoma where a small, neglected Basal cell skin cancer decided to go internal and take out all the lymph nodes for my right shoulder and right arm. Surgery was four years ago and I still feel like crap. Serious disruption of the lymph system, borderline lymphoma. Treatments and medicine have left me pretty much as you about libido, not sexually interested so much anymore.
When I read stories online I just skim over the sex scenes and look for the story content. Good writing and good characters don't always need hard core sex.
Wishing you the best and know that you have a lot of concerned readers that care about you.
David W.