question: MY hand and fingers cramping up, usually in the evening, and sometimes during the day, if I do some work that requires something holding tied in my hand , like a hammer, or a knife. It hurts badly when it happens, and I have to pull my fingers open to the normal position, and often it repeats itself serveral times. when my hand and finger cramping up like that , my hand looks so deformed, and it is very painfull. I know that I have arthritic all through my body, but what exactly is wrong with my hand and finger ??????? Sincerely Rita