15+ years sober here, mostly through some recovery programs and a lot of AA.
Neither the "disease" model (which has connotations of communicability) nor the AA "allergy" model (there's something wrong with my body) make total sense. Rather than try to fit other terms into a procrustean bed, I just call it addiction. Everyone is different, but there are a lot of commonalities.
Given the amount of denial that is present in most cases of addiction, trying to fit it into other categories can make more room for rationalization and avoidance. "I clearly don't have a disease, I never caught it from anyone," someone might say, or "It's not an allergy, I don't break out in hives." And delay treatment that much longer.
I'm a firm believer in getting whatever help works for you. If that's Rational Recovery, great. If that means an AA meeting every day, great. Just get help. Get it earlier than you think you need it. Tell your boss (s/he probably knows something is up anyway, just not what). Drop in on a meeting [yeah, AA, I know]. Tell a friend. Tell your doctor. Make a call and get into treatment. Do something, because until you do that, nothing is going to change.
16 years ago I was without a job and essentially unemployable, on the verge of being homeless, drinking 750ml+ of hard liquor a day, and this close to offing myself to end the misery. Today I'm married, doing really, really well financially, am bringing up a kid, and have a 6100+ karma score on my non-throwaway HN account. Life is good :-)