I feel like my job security is very low...but I don't really have any reason to believe that.
I do all that is asked of me and more. I'm the only one in the office who understands the computers, network, phones, processes, etc. I've been here nearly 3 years and have made very noticeable, very effective changes throughout the office.
Nonetheless, I'm really paranoid.
It doesn't help that the temp (who worked in my place all last week) is back today to help my supervisor with a "project".