These dreams, at least in my mind, can be an expression of a subconscious desire for a drink or drug. It was the oddest thing, but when I was about to get 1 year
the thought kept occurring to me that I should celebrate by having a drink. It was so completely irrational that it was occasionally enough to make me laugh out loud.
I think sometimes anniversaries can remind us that our identities are changing. The very notions of how we see ourselves (for example drinker into nondrinker). This creates a conflict that is played out subconsciously, sometimes in dreams. I never had this problem after the 1 year anniversary.