Question

why do we get cramps in our leg

Answer 1

dude... - sudden displacement of leg in another direction.

Answer 2

they often occur while a person is sleeping or resting. They can be gone in a few seconds, but the average duration is 9 minutes. They can leave tenderness in the muscle for up to 24 hours after.

In most cases the reason for leg cramps is never found, and they are considered harmless. Sometimes, however, they may be linked to an underlying disorder, such as diabetes or peripheral artery disease.

hope it helped