Drinking daily for 2 years, no withdrawal?

hey, recently I got off the alcohol because I didnt want to live like that anymore drinking 2 bottles o wine everyday for 2 years straight.

My biggest break may be 2-3 days pause inbetween but that happened only on rare occasions where I couldnt get any.

I was very anxious about the withdrawal but.. here I am 7 days without the alcohol and didnt have any withdrawal at all. Not physically and not mentally and I am confused. Some days I even drank 4 bottles a day and I thought the withdrawal after that long time would be hell but nothing happened.

Can somebody explain this to me because GABA withdrawal is usually one of the withdrawals that start even after a not so long time use. Why are my receptors not screaming for more GABA stimulation?

thanks