I felt like you did when I stopped drinking, I know this is the reason I picked up another addiction.
I lost something when I stopped drinking, a huge part of me died and i have not been happy since, on top of that i couldnt drown out the memories of my past.
I read these stories of people being so much happier sober and figure i must bedoing something wrong.
i am currently tapering of opiates and cant sleep so feeling miserable again. I cant really say much to help, but your not alone, and although we feel miserable now drinking wont help in the long run. Keep fighting and we will be alright in the end