What Does Frequent, Severe Cramps On Hands And Feet Suggest?

I have very serer. Cramps in my hands and feet. Very painful at times. The cramps actually deforms my finger at times, making them go stright. When i am doing something in awkward motion...IE shave, using tools, sweeping floor and physical things such as these. Waking up with cramps in ny legs and mostly feet. Rrm