I swear this isn't going to be a "wow, that dream was weird" post...
I've had the exact same dream about 5-6 times in the last few months. I'm back in college, it's near the end of the semester, and I realize I haven't gone to my history class all semester and if I don't withdraw like immediately, I'll fail. It's like I completely forgot I had registered for the class and realized it with about 2 weeks left in the semester. But, I can't find the place I need to go to withdraw so I freak out and run around this random building trying to find either the registrar's office or the classroom where this mysterious history class hoping I can plead with the professor. But I can't find that either.
Then, I wake up.
I'm not one to think the dreams really mean anything, but I'm starting to re-think that.
Re: Recurring dream
I've had that exact dream! Also had the one where I am running late for class and I can't remember the code to my lock on the locker or it's the first day of classes and I don't have my schedule!
I think it has to do with being stressed and/or feeling like you are failing/not succeeding.
I know you have some stree with work - maybe it's related to that?