I know a little bit about agoraphobia just from my studies, and it's very debilitating and very serious. I doubt anyone who didn't actually have it would be able to 'fake' it, so to speak.
Is there any way you could work from home? I've been reading more and more recently about jobs with telecommuting options, where you often work from home or even exclusively from home. Of course, the hard part is landing such a job, and I agree with everyone else saying the job hunt is difficult. Good luck to you, though. =)