Numbness/Pain in right leg..

aperfectionista

Hey I was wondering if any one gets some numbness/ slight pain in their right leg while jogging on the treadmill. It seems to start from my ankle to my calf and it feels like my calf muscle is going to cramp.. I used to be able to run at 6.0 mph on the treadmill a couple years ago but I can't anymore. Its like a shooting numbness.. it's really strange..

Is it the treadmill? My stride? Any suggestions?

Thanks for the help!