Oh the last little while is always the worst, isn't it! You're so close, and then it seems to drag on longer than the whole rest of the pregnancy. Hang in there - you're almost done! And try not to worry too much. If I read your birth story from Levi correctly, the trouble you had came during his delivery, right? Not because he was overdue. (Please correct me if I'm wrong.) It sounds like you're being watched carefully this time around (and may no one ever have to go through what you did during Levi's delivery!) and so I'm sure you and bub will be fine.
It really is frustrating to have to make all kinds of arrangements and drive all the way to the doctor's office to have them spend two minutes with you and kick you out the door, isn't it! Make sure that you are getting your questions answered though. Maybe take a list so that you don't forget what was on your mind when you are actually there.
Anyways, hold on a little longer - it will all be done soon and you'll have that little one in your arms. All the best!