Once in a while I get into these funky moods where things just aren't right. Nothing sets it off or it could be something so minor that sets it off that I know that's not the real cause.
I have a very particular set of skills (that I'm sure quite a few people do), where I am perfectly fine in the outside but not necessarily on the inside. I may let a few personal close people into that shielded space where I might say I'm ok instead of the usual good. Some people are better (or more entuned?) to know when I'm acting strange. There's not really anything to do about it though.
Just got to ride out that wave and move forward. Put on that poker face and step on up.