I personally feel that alcoholism is self diagnosed. Mainly because if the 'alcoholic' doesn't accept their own problem, the problem can not be solved.
You've been coming here since 2011. I guess the real question is, what do you think? That's the only diagnosis that matters. That inner voice. The higher thinking voice. The one that google 'is my drinking a problem?'.
I would suggest not listening to people telling you you don't have a problem. In all my years in AA I've never heard of members telling people they don't need to be there. Listen to yourself.