I think its completely normal. Think about this -- you've been working towards a goal, and were told all your life that once you've attained that goal, life would be great. Now you find yourself with the degree but none of the greatness you should have. So of course you feel let down and lost.

I went through the same exact thing. In fact, I seriously considered going for my graduate degree just to postpone reality. Reality is not as much fun as people promised. While in school, you work towards a goal. You dream what life would be like once you get there. Now, you're THERE. And its nothing like your dreams. Where's the glamourous job with coworkers praising your excellent work? Where's the awesome apartment? And the rocking social life?

You know what? Just because you graduated and are in a time of transition, doesn't mean you can't appreciate the wonderful things going on now. You have the whole world open to you! Nothing is 100% concrete and nothing is tying you down to any one thing. You are soooo lucky!