I definitely stress about EVERYTHING in my life. If even the smallest thing is wrong, I worry about it constantly until it is resolved. That's why I hate arguing so much. It consumes my life and my thoughts. I get that way with school and work too or anything really.
I wish I didn't do this, but it's just a part of who I am I think. I try to keep it under control...and I fail. LOL! Anyway, you are NOT alone!