I'm sorry to hear all that you are going through. It was good that you e-mailed your wife some information about what you were diagnosed with. I'm sorry that she doesn't want to hear about it. I'm sure she has her own reasons.
It sounds like she has made herself perfectly clear that she doesn't want any further contact with you right now. I'd suggest honoring her request. Maybe in time, she will be opened to have further discussions with you.
Continue with your wellness program on your own like you have been doing. It's serious business and I hope you continue to stay committed.