When you say "outside of your leg", are you talking about the outter side of your leg? Or are you talking the shin? And how low are you talking about? Just below the knee? Just above the ankle?
I once had pain like your describing in my lower leg, but it was deep in the muscle, so it was hard to determine where it was exactly. Although it didn't feel like a typical strain/sprain, that's what it ended up being. It was a muscle in the calf called the "gastrocnemius". The only time I got the pain was off the double-up doing roll 2 reverts. So basically big air, and landing switch was what triggered the pain. Every other trick that I did wouldn't hurt. I'm not saying this is what your injury is, but something to consider.