No matter how in control he acts, regularly (even once a week) having 10-15 drinks and 12 packs of beers on weekends will eventually catch up with him. Some of us get away relatively unscathed if we only do this for a few short years but if it goes on we will eventually have health issues like weight gain, epilepsy, Type 2 diabetes, run ins with the law, reduced productivity, or we will get in a social situation that we later regret---all of these things and more have happened to me or someone I know because of their drinking. Personnally, I cannot stand being around drunk people unless I am also drunk (I very rarely drink now).

You've noted that you have been diagnosed with Generalized Anxiety Disorder, Obsessive Compulsive Disorder ("Pure O" Type), Panic Disorder with Agoraphobia, Social Anxiety so just keep working on these issues but having a bf who drinks that excessively is going to eventually cause problems if he keeps this pace up. Excessive alcohol (I am not talking about moderate drinking) is not compatible with being a parent or keeping a good job. I don't think it's unreasonable to be concerned but only he can "make the change"-- nagging to much will just backfire....