I make it a point to be as honest and sincere as I can about things, but I still keep going back and wondering if I was really doing something for the reason I believed at the time, or if in the back of my mind I had ulterior motives. I never intentionally act on ulterior motives, but I often wonder if I am just hiding them from myself to protect my own self-image. And if I'm actually a horrible, manipulative person who doesn't realize it. But sometimes I confess to having a bad motive or reason for something, really believing it, only to look back later and realize that I didn't give myself enough credit. That I was actually lying about having a bad reason when my true reason for doing something was pretty good and reasonable.
I'm just never certain about myself, and I don't believe myself about anything half of the time. Even when I'm telling the truth.

What's up with this? Anyone else have this problem?