I was wondering this today as well. I haven't been sober for long yet. Not even two weeks. All of the physical and mental pains I was dousing in alcohol are hard to deal with at times. Sleepless nights, muscle twitches like crazy, itching all the time, complexion good one day and then looking like a 14 yr old with acne the next, aches and pains I haven't felt in years or maybe never had them before and now do because I've abused the hell out of my body with the booze. But each day I see things getting better. I'm gaining weight, eating better and drink nearly as much water as I was drinking alcohol. Brain isn't foggy anymore, for the most part. Everyone says it takes time and all depends on physical condition, amount of booze was being consumed and activity level. Just have to be patient and hope that one day soon, I'll sleep through the night without twitching and wake up without the itches.