I’ve gotten 3 cramps in the past 2 weeks (On calve and twice on foot) and I don’t know why. I do walk a lot because I walk to the bus to go to school and walk a lot around school to switch classes and stuff, but the thing is before school started I walk to the store plenty of times and never gotten a cramp, so I don’t know why all of a sudden I’ve got cramps. Any answers?