I constantly get depressed and anxious.was diagnosed with mitral valve prolapse, always getting sick.could this mean my heart may be regurgitating?

Doubtful: They probably aren't related. Talk to your doctor about echocardiography. That will answer the question of regurgitation.

Mitral Valve Prolaps: Mvp is a common finding in people with anxiety disorders, especially panic disorder. It doesn't mean one causes the other, nor does it mean there's significant regurgitation. Consult with a cardiologist -- including any other exams s/he suggests -- should give you opportunity to ask questions, get answers, and feel relieved. Also, see psychiatrist and therapist for depression/anxiety help.