This site has been tremendously helpful to me, also, especially on the days when I find myself really missing my friend. I fight the urge to fire off an email to him, and instead I come here (and to the other boards like New to Recovery and Alcoholism) to read and learn.
As to the OP about impending doom, I get those feelings, too, and they are hard to shake. I try to shift my focus to something positive that's going on around me and take things slowly. Good luck today!