When I stopped drinking and drugging I could haver been elected president and been nominated heir to Hefner's grotto and all the bunnies and I'd have still had my head up my arse miserable.... because I couldn't go get a buzz on anymore.
That plus loss of a romantic relationship generally takes time to grieve and process. Seems about normal IMO. Throw some continuous sobriety at that and see if those "problems" don't work themselves out for you.