Oh, yeah. I can identify with you! I recently went through this very same thing: moving, quitting a job I liked, and plus I had to stay with family for a while until I was trained for my new job and was ready to settle in Dallas.
The worst part of it for me was the actual moving and the getting ready to move. It just sort of seemed to loom over me for a while, and then when I started packing things up I sort of freaked out. Having lived alone for several years, I thought it would be very difficult to live with my Dad for several weeks (their office is at home, complete with employees and I NEVER had privacy). But it wasn't that bad. I did, however, have a more IBS-like symptoms during that time. In spite of that, it was actually a positive experience because there's no doubt in my mind I can still hang with people. After being alone for so long, you're just not sure. And since I've been in Dallas I've been hanging out with friends every other day or so. Life is good.
So you're moving to start med school, huh? Well, it's a dry heat out there and it probably won't be quite as bad as you're imagining. And you'll make LOTS of friends in medical school. I've known several people who did that, and the pressure and competitiveness helped them formed bonds, so they said. So you'll do alright.
In my case I knew my move would be for the better, but I experienced a ton of increased anxiety regardless. So, yeah, it's normal. Any big change like that will get your emotions all sideways.
But you always have to look at the positives, no matter how insignificant they may seem: You're doing a long move, for instance. That's hard, but it some ways it's easier because you get to REST on the way. I did a cross-state move and found that it was much easier than a cross-town move for that reason. And, in generally, change is usually a good thing.
Best of luck to you!
My Brain: My friend, My enemy: A blog to chronicle my attempt to recover from anxiety/panic disorderanxietypanicdisorder.blogspot.com/