OK, try to get a breath or two in ..... If you can't think of a Dr who could give you a note in time, here are a couple more thoughts:
1) When I showed up once without a note, they took one look at me and put my paper on the bottom of the pile. (This is a good time to start revealing your stress symptoms if jsut walking into the courthouse didn't do it already...)
2) the Judge will ask for people who can't serve to raise their hands. You would have to explain that you're claustrophobic right there in front of everybody, but, the Judge will let you go, especially if you're twitching, (if you know what I mean...)
3) they really don't want somebody who can't do it.
In the meantime: BREATH: in goes the good air, out goes the bad air and scarey thoughts. Repeat. Hang in there and keep us posted, ok?