Lysa, I've been on the boards for a long time and crossed paths with aj often. I modded for him on one of his boards shortly before he had to do time. I respected the man very much. I still can't believe he's gone.
Times seem tough enough for you right now, having this happen on top of everything will test your fortitude. Being a cancer survivor myself I can understand your situation. Put your trust in your doctors / surgeons and staff, and have faith that you will be healthy one day soon. I found that one of the benefits of living a healthy lifestyle is the advantage it gives you in recovery. Recovery is a peace of cake to those that have dedicated themselves to building a strong body and mind. That is something I can see that you have in reading your post.
Rest assured many of us will be here for you if you need advice.
Keep Aj's strength in your heart and do well to recover as he would want from you. Be happy as he would want you to be.