I had been building up to stop for a few years of trying to moderate. I knew I was going to stop but I kept delaying it. Then a party which ended up with me blacking out and crashing my bike on my way home made me make the final decision. My drinking wasn't at a level where it affected my marriage or work and I was rarely drunk (that party was a rare exception), but I knew that if I didn't give it up it would eventually have a severe health impact.
Six months later, it's now obvious that my relationship with alcohol was/is not normal and never will be. I have very little cravings but there is weird nervousness/tension/obsession around alcohol and it's still there. No one close to me believes that I am ever an alcoholic and don't understand why I have given it up since I didn't drink the amount and way people think of as alcoholic.