I have no idea what or when, but I can tell something is coming. 

Something is off.  I’m exhausted while fully rested.  I feel lost.  I feel lonely despite being with a house full of people.  I feel on edge.  My anxiety is through the roof.  I could cry at the drop of a hat. I don’t have the words to allow me to talk.  My smile is only surface deep. I can’t concentrate long enough to write.