I was diagnosed during my second flare up in 2009 when I was pregnant with my first child. My first flare up occurred 2 years prior after I had a miscarriage. 1 month later I experienced a flare up that lasted 3 months. Doctors had no idea what was wrong with me and after 3 months of being hospitalized, the flare up ran its course and I was discharged without a diagnosis. My third flare up occurred a month after my second child was born. I have noticed that all 3 of my flare ups occurred during or after a pregnancy/miscarriage.