Like Gabe said, its ok that it's not there right now, it doesn't have to be.
It also doesn't have to be a major issue either, it could simply be that its just how you feel right now. However, if theres any internal cause and effect stuff going on in you, your the only one who knows it, and your the only one who can work it out. And there are alot of different ways to get help with that.
Sometimes the best we can do is just ride it out, feel it, talk about it, and then it'll pass.
Hang in there-