i'm beginning to wonder if the drink has been masking a deeper depression and now that the drink has gone, that's now taking over. might ask the Doc about that.
I would just add that unless your doctor is in recovery himself or is an addiction specialist, I wouldn't count on him to have any answers about mood after quitting. Their job is to prescribe drugs, so if you talk to him about possible post acute withdrawal mood symptoms he's likely to give you a pill.
When I first quit drinking I had decided I was not going to take any prescribed medication. I have been given too many pills in the past and they all had side effects that were as bad or worse than the malady for which they were prescribed. I wasn't willing to tamper with my body again.
I found it took a good three months to feel a baseline of real happiness on a daily basis and it took a lot longer to work through the stuff that was bothering me in general, outside of drinking problems.
There was damage done: physical, psychological and spiritual. It took me nine months before I really exhaled and found peace.
Good nutrition and daily exercise, sleep, water, meditation, prayer. All those things did the trick. Not right away, but at least I know I don't need pills any more. That was my decision, so I had to find other ways. There are other ways!