Where is Zenmama From the Tripping Over Cancer Blog?

Does anyone know what happened to Zenmama from the blog Tripping Over Cancer? I'm worried about her. The last time she posted to her blog was November 7, 2011. She was documenting her fight against breast cancer and she was doing so well and then all of a sudden, no more posts. There is no way to reach her. I don't know what her real name is and there is no contact information on her blog. All you can do is comment, which I've done, hoping to hear something, but I haven't. I'm worried about her.