I agree with post by Tart Cherry Jam
I'm a recovered alcoholic & if your body is dependent on alcohol, you will have withdrawal. When you're an alcoholic, u constantly have serious issues. Mine would be losing jobs, tickets from police, homelessness. Bad health, the list goes on and on. It really doesn't sound to me like you have a problem with alcohol, at all.
If u noticed your tolerance increases and u need more drinks than u did before...that's one warning sign. The crap does sneak up on you and then u rely on it. If u can take it or leave it, you're OK.
Also u say you've never been drunk. I used to drink for sole purpose of getting falling down, blackout drunk. Sounds like u use alcohol to simply relax & enjoy. The way it's supposed to be used responsibly.