I'm looking for a job currently. I faxed my resume to a few companies last week, and yesterday I got a phone call from two of them. They left messages on my answering machine with call back numbers. But now I'm really nervous about calling them back for some reason, to the point where I'm thinking of not calling them back at all, although I really need a job!! Do I have some kind of phobia? I'm afraid of sounding like an jackass on the phone and not getting the job.