I had an anxious episode around lunch time. A couple coworkers talked to me for a bit- and I totally panicked after I spoke because they looked at each other (locking eyes) and smiling. You know, like the way mean girls do when they were just talking about you behind your back; only to then come and talk to you about something 'random'- though that randomness is within the context of what they were talking about you behind your back.
That, and i noticed when i get low blood sugar- anxiety spikes for me.