Exact same feeling with me. When taking this drug I did not feel high or happy, I actually felt more down and that likely was because of the amount of alcohol I was consuming.

I quit the med cold turkey because I had enough of the cravings. It's been 8 days and so far the only side effect I can notice is insomnia. If it was to get severe I do have a couple of pills left but I have no intention of taking them unless it becomes desperate. So far no depression of anything like that. I think I may get away with going cold turkey because 20mg is quite a low dose. Of course if I was on 40mg I would never recommend this. And to think my docter was thinking of putting me up to 30mg a few months ago and the only thing that stopped that from happening was I had trouble arranging an appointment. Glad for that now.