I should have known I was in trouble when my hangovers lasted longer then a day......
I should have known I was in trouble when I would avoid activities where drinking wasn't involved.........
I should have known I was in trouble when I'd start looking at the clock around 4 pm and planning what I would drink that night instead of what I would eat.
I should have known I was in trouble when I'd rather be alone with a drink then be out with a friend not drinking.