Lusher I have had the same feelings as you regarding "excitement" while remaining sober. I started googling how I was feeling and came across this article on romancing the past. When I was drinking I would get excited over placing my cases of beer perfectly in a cooler in the morning, knowing at noon my beer would be nice and cold and ready to drink until I passed out. Every thought revolving around drinking that day would excite me and would give me an adrenaline rush.
Alcohol was such a huge part of my life, physically and mentally, that I had to find other things to gain excitement. Just know your not alone in your feelings. Here is the article for you to read regarding romancing the past Good luck Lusher!!
Romancing the Past: A Dangerous Practice in Recovery - Addiction Treatment Magazine