Had a murmur ,my echo says i have trace to mild mitral regurgitation in one valve. normal weight, lipids, bp, glu. reason to f/u with cardiology?

Not really: Trace to mild regurgitation on echocardiogram is likely not the cause of your auscultated "murmur" as that would be very hard to hear. I suspect your doctor thought there was a murmur, and it turns out not to be clinically significant. If you are truly asymptomatic: no SOB, no chest pain, etc., then no need for cardio based on this finding alone. As for preventative care, ensure lipids really norm