I was pretty tired (knackered?) for the first couple weeks too. That got better, now I almost feel normal, but I'm not really sure what normal is after drinking for so long, it's gotta be better than ingesting poison all night and expelling it the next day. Anyway, take naps when you can, your body is telling you what it needs. And stay the hell away from Stella and all her friends! They look pretty on the outside but underneath they're rotten to the core.