After several years of knocking back 12-18 5.9% alc bud ice beers per night, I became nauseated, had severe digestive issues, and a sudden and acute onset of feeling the need to throw up upon eating and especially drinking beer. So, I sipped a few beers as to lessen the withdrawals, and after I recovered, I decided to ween myself off alcohol. It took my about 5 weeks to do so. I didn't have any other reason to quit before that, really, except that I wasn't working. After I quit I got a job and started exercising heavily.