Just the amount you drink and the fact that you continue to do what you do, doesn't mean anything other than you drink like an alcoholic. You do know that alcohol interrupts proper sleep patterns, whether you acknowledge it or not... Your More Significant side effects (other than what you mentioned, which isn't normal) may occur overnight in the near or distant future.
Have you discussed your drinking with your physician? I would start there!
Oh, and by asking a question on this site, there's a clue you know something is amiss...
Best wishes,