I have an iPhone 4S running 5.01. The contacts just suddenly disappeared! Wtf?? I hooked up my phone to itunes to restore from backup. I backed up earlier today and usually do at least once a week. When I went to restore from backup tonight, it only had the backup that it automatically did when I just plugged in but none of the other ones from the last few days, the only other backups were from 2011 and earlier. How is this possible?? I backup every time I sync to iTunes! I'm going insane, somebody please help me.