If you're addicted to alcohol then withdrawal symptoms start just hours after your last drink. I personally experience the onset of withdrawal symptoms (nausea, vomiting, sweating, shaking) something like 6-8 hours after my last drink, depending on how much I've had, and they can get bad enough that I have to visit the emergency room. I also drink a lot more than you do, up to a liter of hard liquor a day (I'm on the waitlist to get into detox and treatment). Based on your lack of withdrawal symptoms I don't think you're addicted in the clinical sense. However, I'm not a doctor. And the only real person who can judge whether you're addicted is you.