nailit can I just say how I think it must be really really difficult for you knowing for the past 2 years that your mum is coming to the end of her life and I think you are very brave the way you have been dealing with it .I spent a few days in hospital over Christmas and there was a very poorly lady in the bed opposite. During the day she was fairly quiet, but once lights went out she would start having these really long conversations with someone. One night, I went over to ask her if she needed to be on the phone for so long during the night as it was keeping the rest of us awake, and was shocked to find she wasn't on the phone. I have seen people who talk to themselves and you can't really tell what they are saying, but these were proper conversations she was having, so perhaps it is something that happens.