skittlebug

Hello all. I am not yet banded and have tons of questions!! I called my insurance company this morning and they gave me the requirements, but I have questions about them. They said I have to have 6 months of dieting prior to surgery. They said it does not have to be doctor approved, what does this mean?? They also said I have to have a psychological exam, is that normal? I understood everything else, just mainly these 2 things I was concerned about. Any advice/help??