This is an interesting issue. Two years ago I was drinking every day, five a day on average, and had been for many years. I caught a stomach virus and didn't want to drink for two weeks. I decided to use this "lucky" sickness to my advantage. While I was sick, I just kept imagining that the alcohol caused it, so I created an association between alcohol and nausea etc. After two weeks, I did start drinking again, but only a few days a week. It was the beginning of sobriety for me.