Am I being selfish?

[astralsuzy]

I am looking for advice. My mother looks after my father who has Alzheimers. My mother is not coping. She gets stressed and as a result she gets health problems. When she goes away on a cruise for a couple of weeks her health is very good. When she gets home her health deteriorates. My parents stay home and refuse to go out anywhere except to go out shopping. They watch TV and they fall asleep. Later on about 5.00 pm they have biscuits with cheese and an alcoholic drink and they fall asleep. They go to bed at 8.30 pm. My father calls out in the middle of the night keeping my mother awake. I have talked to my parents that they must change their lifestyle as they are getting too much sleep and that is why dad is getting out of bed early. They will not change their routine. My mother has finally accepted getting respite for my father. He has not had respite yet. My brother thinks he has come up with a great idea. He wants my father to stay at his place for a few days, my other brother's place for a few days and my place for a few days. I do not mean to sound selfish but I do not want to do it. I work Monday to Friday. My husband also works. My brother said I can have my father on Friday nights and take him home on Sunday. It will happen about once every three weeks. I visit my parents every Saturday afternoon. My brother wanted me to just take dad out when I see them on Saturdays to give my mother a break. I said no, I will take both mum and dad out not just dad. My mother feels happy when she sees me and she says that she feels better when she is with me. My brother currently takes my father out every Thursday and my other brother takes my father out on Mondays for the day. It has not helped my mother's health. She said it has not helped. She did things to enjoy herself but she still is not well. She has seen the doctor a lot and has been on medication. My mother said the medication made her worse or it did not do any good so she stopped taking it. She has been checked out at the hospital and there is nothing wrong with her. What do you think? Am I being selfish?