I actually needed to see this thread today. I've been spinning a situation in my mind, or rather letting it spin my mind, and I just have to put it down and walk away from it now. Not my circus. Not my monkeys.
For anyone else reading this, if you find you do spend all your energy worrying about problems that you aren't sure are really even yours, there's a great book called Codependent No More. It's been instrumental in my very early sobriety.