My daughter has been getting leg cramps. These often strike in the evening and especially at night. We are working on getting more stretching into her routine, more bananas in her diet, and a warm pack to help relieve the symptoms. When I go to massage her calf out, the muscle is a tight ball. I remember leg cramps as a kids, though at an older age. I remember waking up with my legs in agony and having to slowly massage them out before I could sleep again. I really hope this is just a short phase for her.