It's so stupid, but I am fixated with my thermostat.  It seems from time to time irradict, like it isn't consistent with the temp value changes.  And it bothers me because I don't understand why it's all over the place.  I can't sleep because I can't stop timing how long it runs or how long between cycles.  I just can't stop and it makes me want to explode.  I've had a panic attack almost every night thinking about it.