What Causes Radiating Pain From The Shoulder To The Wrist?

Hi Dr. Rynne, The pisiform bones and pinkies hurt on each wrist/hand. The left hurts more as I am left-handed. Sometimes I get pain all the way up to my shoulder. I read about carpal tunnel and that seems to be on the other side of the hand, not the side in which I am experiencing pain. My wrists hurt after driving, when/after I am typing (I am an administrative assistant, so that is often) and, funny as this sounds, while - and especially after - kneading pasta dough. If they get really bad, I wear a wrist brace at night to prevent from bending my wrists. If not carpal tunnel, what could this be? I appreciate your feedback. Sincerely, Jen