I am 48 yo male, 5 3 , 140 lbs. I was diagnosed in childhood with a bicuspid aortic valve, so I am quite active, run 30 min 6x a week, and weight lifting 30 min 3x a week. For the past few days I have been experiencing a light tingling in my left leg. My work and commute does involve a lot of sitting, so I m wondering if this may be the cause?