Like the others have said I would see your doctor, they will do their best to help. It's extremely difficult to tell on an Internet forum as you could be stick thin midget but the amount of booze you describe would seem unlikely to put you in the category of people who cannot safely just stop without dire consequences although if you did start to have problems go back to your doctor. It certainly sounds like you have a problem with alcohol and stopping is more likely to make you better than worse although your AV will certainly try to convince you otherwise. Have you tried stopping before and did it cause you any problems?