check with a chiropractor - the tingling in your leg might be a result of something in your hips or lower back....
well im not sure, because i can't see your leg, but if your leg swells a little or gets puffy at your feet and ankles, you might have some adema that restricting blood flow.
if you want to increase blood flow, i would suggest cardio, and lots of fluids, if you don't have a problem with ademia. of course, i think everyone should play it safe and always see a doctor when in doubt!