Shortly after I started playing today, I developed a pain at the bottom of my shin. This isn't a shin splint, as, from what I understand, those occur on the inside of the shin. This is the muscle right on the front of the shin, immediately above my ankle. To go you an idea, it hurts almost on the top surface of the ankle joint when I straighten and contract my right foot (only my right). Any ideas? I've never had anything like this before, and it's not really debilitating - I can still play - it's just very annoying because it's a bit stiff and is giving me a slightly limp.