I would like to know what the ESPSTEIN BARR TEST IS AND WHAT DOES EBS STAND FOR IN A BLOOD TEST. is this ebs something I need to request from my dr to include in my blood tests? I don't believe they have ever done it. I am extremely tired, weak depressed and have no motivation to go anywhere or see anyone. the drs don't seem to think I am tired I guess, all they say is get plenty of exercise. I don't even want to get out of bed let alone exercise. someone: any advice????