i hate to say it, but prob. not wise to appeal a rejection. would you want a class filled with future physicians who couldn't take a setback? enough med students challenge every test question anyway and it is hard enough as it is...
i know it feels powerless to apply, i was there. i know it sucks to be rejected, i was there, too. i know what it's like to look at others you know who "got in" and think the adcoms made a mistake.
but it's an unperfect process. mistakes are made both ways. i just think if you appeal, you'll red flag yourself from that school forever, whereas, if you just take it and try to build your app, they may be more interested in you next year as someone who proved 1) they would not take no for an answer and 2) they will use conventional means to achieve their professional goals.
it took some of us out here a couple of tries to get in. yes, i hated waiting. i hated working and working at something that felt so futile. . . but once you finally cross that adcoms line, you'll forget about all the heartache, you'll be too busy. and besides, would you really want to go somewhere where they decided they didn't want you?