It sounds like both. You acknowledge anxiety led to heavy drinking, and I've read that there is a kind of rebound effect during detox that can last days, weeks, even months. In other words, the anxiety can be worse for awhile in early sobriety and then tends to level out. I sure hope so. I'm six weeks sober and lately having a few great days alternating with one or two rough ones. I'm emerging from a couple of rough ones and right now just feeling exhausted.