Have you ever considered that nothing is wrong with you because nothing is wrong with you, and not that nothing is wrong with you because you are some stoic or heroic figure who managed to simply resist temptation?
I've been drunk plenty of times. I've also not consumed enough alcohol to be in a drunken state in almost 8 years despite having a collection of bourbon worth thousands. A good friend of mine, who drank no more than I did for a long while, could not stop. He kept going until he wrecked his liver and died from organ failure.
I didn't have the strength to overcome alcoholism. I was simply never an alcoholic. He was.