foot cramps in the arch of my foot?

[D-$]

the past few weeks ive been getting cramps in the arch of my foot behind my big toe it only happens on my right foot. i drink plenty of water (about 60 oz of bottled water plus what i get with food) and i also have been eating at least one banana a day because of these cramps. i normally get one or two of these cramps a month but the past two weeks ive gotten about 10-15 of them. is it possible that i injured something in my foot? my friends and i play a lot of basketball and racquetball and i havent noticed any pain while playing, but is this something that i should be concerned about