Family Issues Support Group
Family issues is a huge range that go from minor conflict to major misbehaviour and even abuse on the part of individual members of the family occur. Whether you feel you are in a dysfunctional family or you're dealing with a very specific issue, this is the place to talk about it and find others who might be going through the same thing.
as for deciding who is there during your surgery, it sounds like she is just trying to control something in an uncontrollable situation.
you should ask your doctor to recommend a support group or something like it in your community. i'm sure he/she will know, and i'm sure that someone touched by this situation could benefit from that knowledge, even if they don't choose to go.
everyone reacts differently.
i hope only the best for you and i hope your treatments are wildly successful.