Yours is a less common experience, yet not unheard of. My FIL was the same way. This doesn't get much attention from recovery folks for a couple of reasons, IMHO:
1) If there is no real struggle, there's not much need for program.
2) It challenges the disease\disorder view of addiction.
3) Hearing about these experiences can be discouraging for others that are struggling.
All that said, I am happy that there are folks like you for a few reasons:
1) Heavy consumption of alcohol is detrimental to good health
2) I am glad you do not need to expend the effort struggling or drinking, that time can be put to other good uses
3) Life can be hard enough, I'm happy for anyone that catches a break
4) It provides **ME** a glimmer of hope that there may one day be a medical cure for addiction problems.
I wish you well
FG