I am sorry to hear about your illness! I don't know if you've heard of Liu Wie or Kun Shan Xie , but I find them to be amazing artists who don't let their limitations get in their way. Please don't give up if art is what you love!
Oh my God, I am so sorry to hear about your illness! I don't know what I would do, if it was me. I know I wouldn't feel worth, if I was no longer able to draw or paint. I'm sorry that I can't help you out, but you got my respect. I really hope things will get better for you and so you can continue to do art.
Disabled as well, a learning disability and a physical one - extremely poor hand eye coordination which requires me to use constant effort and to endure constant pain in order to get my hands to work well.