Part of leg hurts with b petal.?

The only thing that helped me was exercising that leg until the foot and ankle became accustomed to the weird motion of playing the pedal. For a few weeks, I would take a piece of 2x4 wood and put it on the ground. I'd balance on it with the front half of my right foot, then lower the heel almost to the ground and then stand back on the front half again. I'd do that maybe 20 times in a row a couple times a day. It's the most tedious exercise in the world, but it actually helped me. And now I've got a lot more foot stamina when I'm drumming. Hope this helps! Good luck!