Wish I had some words of advice, I feel for what you are going through but in my case I am the opposite, when I am sober I am on the go but in balance making sure a little time is spent on a host of activities. Once sober I start walking my dog whom I think the world of, getting things done inside and outside, cooking, last night for example I drove an hour to take my better half out for supper and a movie, I personally can't do any of the things I am doing today if I am drinking, and yes I am a closet drinker, I do not want to do anything or see anyone, just drink, what a terrible way to live as I love what life has to offer, not all but the majority.
It could very well be you are depressed and may not even realize it, I always say take the issue to your doc as mind has always been able to help me through whatever it was I was having issues with.