Your brain is waking up. That's the way I took it when it happened to me.
Your brain has been numb for so long and now its not. It's in overdrive now. It'll regulate itself. It just takes time.
I went on a rehab my house binge that lasted 5 months. I basically did everything I had neglected over 10 years in 5 months. It helped actually because I obsessed over that instead of drinking.