Can someone explain to me why myself and anyone else with bipolar disorder is assumed to be a compulsive, pathological liar? 

I mean, for the rest of my life, are sane people who meet me and hear I'm bipolar just going to assume I'm more likely than not lying to them?

Was "has a history of pathological lying" a diagnostic criterion that I just never noticed?  

Am I going to wake up one day and start lying for no good reason?