The feeling you experience when you can't feel your phone in your pocket, or immediately recognize where it is, or when you realize you left your phone somewhere and can't immediately get to it to see what you are missing out on.
I was overwhelmed with Phonxiety when I realized that my phone was at home. I was worried about all of the things I might miss out on until I could be reunited with it.
(From Personality Q&A)
Anxiety: I dunno, I'm actually kinda getting into this. Bring it on.
Thomas: Alright! "If you had to kiss one of the others who would you choose?"
Us: *collective gasp*
Anxiety: Nope I'm out.
Us: *collective groan/wailing of fury and anguish* WHY MUST YOU TEASE US WITH PRINXIETY THOMAS
(noun) A ship from Thomas Sanders' "Sanders Sides" series that was created by the 'Fanders.' Usually used in a romantic sense and is the combination of Princey (Roman a.k.a. Creativity) and Anxiety (Virgil).