90 days or so for me. This past month, and I am in month 5 somewhere, I have felt pretty normal, for the most part. Sometimes my emotions are a little wonky, but the groggy, looking at the world from the outside feeling is completely gone, as is all my unexplained anxiety (well, it was alcohol that was the root of that.) No panic attacks, no irrational fears of dying, none of the stuff that used to wake me in the night.
The most amazing change is in my cognition- I was really becoming afraid for myself near the end of my drinking and for the first two months of sobriety, I could barely think clearly or hold information for more than a minute. My memory was shot, my concentration was horrible and it was so scary. I just realized the other day that I no longer consider my cognition an issue, and I had forgotten just how bad it had become.
Thanks for this question. Its good to remember some of these things.