i am in school for cosmotology and i have noticed that when i am styling hair or doing anything that involves tedious concentration, both of my hands tend to cramp up and go numb for long periods of time, it is painful much like a foot cramp or spasm but its starting to happen more and more. My hands also shake a lot, and is uncontrollable always. I do not have any health problems that i know of however my grandmother has severe osteoarthritis and i am worried that i may be at risk. Is there anything i can do to control or rid of my problem hands?