I have a sister similar to the way your brother is. I haven't talked to her in 3 years, but it is my choice. Both of our parents are both gone too. What I would do when you see him, is just talk about current events. If he brings up your health, I would just say that I do not want to discuss this with you. I know that it might be upsetting to you, but he is just that type of person. He just doesn't understand. My sister has gave me so many of her opinions on my health. I just don't listen to her. Most of the time it is said intended to be an insult towards me. I can't even have a conversation with her without her husband interfering in it. I also do agree with what ECHOES said about men. Zen he might be your brother, but that doesn't mean that you need to take his crap either. You also have a choice in this. My experience with family is they can be the first ones to screw you. I have had way better friends, and even strangers treat me better than my own family. Friends can be a part of your family. You just need good quality friends. There are a lot of good people out there.