Warning, time travelers, beware! The following symptoms may signal that you've been stuck in a temporal loop:
Repeating the same conversation with yourself. "I'm fine, I'm fine, I'm fine..."
Uncontrollable urge to adjust clocks. Because, let's face it, 3 o'clock is not that much later than 2:59.
Disproportionate interest in historical events. Who doesn't love a good ancient Egyptian pyramid sale?