Ok I don't get out much so had to google billy Connelly...
I used to wake up from drinking dreams in terror. I don't get them very often anymore, now I just wake up annoyed. In the dreams, I go between really wanting to drink and being mad and trying to cover up that I did. I used to worry that it was a sign I would drink. It's not.
Some may say it's your minds way of dealing with the lack of booze. Some may say you are working out your stress. Some may say it's like those dreams where you realize you forgot to take that crucial class at university 10 years ago and now don't have that degree after all.
It could be any or none of those things. It's a dream. You woke up sober and won't drink today. That's what matters!