Multiple Sclerosis

Leg cramps can also be a syptom of a nervous system disorder called Multiple Sclerosis. Cramps and spasms are called spasticity, which include involuntary muscle spasms. If left untreated, it can cause immpbilized joints. If you have other symptoms of MS, such as blurred vision, weakness, tingling, or dizziness, talk to your doctor right away.