Don't worry, I'm a pretty arrogant bastard myself. You really should see a doctor, you can take a day off from work and go. If you are actually a depressed about this, you should do it before you get more distressed.
LII isn't completely out of the running, but I definitely see ILE more.
I've read that people focus on their POLR in one of two ways. You either completely ignore it out of fear of humiliating yourself or you do everything you can to appear competent in it. You aren't actually as competent with it as you think you are however.
At least, that's what I believe.