Welcome, LBN! Good to have you with us. Probably best to see a doctor (and tell him exactly how much you drank and your experience with withdrawals). I had just a couple thoughts: First, could it be that during those evening hours you slow down enough to tune into your body more than during the day? I also know that when I'm stressed or tired, I occasionally notice a little confusion/brain fog and a lot of weariness similar to my early sobriety days.
Also, read up on PAWS (there's a thread about it around here somewhere). It helped me to understand that there can still be a lot of effects even after the initial withdrawal period.
Best of luck!!