You mentioned fatigue therefore I can't help but wonder if this is a sudden "craving" rather than a nagging, lingering (as in days) loss of resolve.
In my last sobriety which was a matter of months...I know I had probably 4 or 5 hard cravings (obviously didn't make it through the last) and I know a couple of them were due to extreme fatigue...a couple were due to emotional overwhelment and once was a combination of fatigue and not eating all day.
Are you familiar with the H.A.L.T?
Hungry, Angry Lonely Tired. It's always a good idea to check in with yourself to see if any of the factors are in play when a drink seems like a good idea.