My mum fought for two years she was diagnosed with lung cancer, non smokers lung cancer which spread to the brain and bone. She was my best friend. My sister and I fought every step of the way with her. She died 30th December 2012 and since then I have been in complete denial and on auto pilot. Is that normal? Her funeral is 14 January. My sister is going to see her in the chapel of rest but I don't think i can. My husband…