Thomas , do you have a recovery group nearby, that you could join? I think its kind that you don't want people to worry, but it will hurt them far more if something happened to you, from not taking care of yourself.
its so so good to have someone to talk with , face to face. To relate with, to understand and to build support systems with. and friendships.
you want to reach out... be brave, and do it. I think you will be so glad that you did.