What Causes Tingling Numbness In Left Hand And Foot And Feeling Cold?

I am 55 years old, have increasing tingling numbness in left hand and foot, feels cold. Pretty consistent. Had my thyroid check and it's in the normal range. Could even wear gloves in the summer on the left hand. When I exercise, it gets better. I'm physically active, not overweight and other than that, very healthy. 5'10", 155 lbs.