I pretty much figure coworkers are aware , especially the 'real bad wks'.
I'm a reasonably intelligent guy , but still work in a deadend job(hell career now), was able to rationalize that to myself with self pity and blaming the need for a noninterruptable paycheck/insurance coverage for years, but now the fog is harder to manufacture, its my drinking I know that.
I just don't know what to do , expect to not drink today, the possible physical effects are not as frightening to me as what I am going to have to face without being able to numb that realization away, tonight.