Cheryl, sometimes meds can cause some pretty wide mood swings, or depression. Are you on steroids? I've known some people to experience some pretty strong emotional reactions to prednisone. And, let's face it, having lupus could certainly cause depression. Talk to your doctor - I know it's just one more thing to deal with, but it's tough enough to take good care of yourself and cope with this disease without having your moods are all over the map. I hope you find some answers. Take good care of yourself!
"If you trust Google more than you trust your doctor than maybe it's time to switch doctors."