I work for a electricaln utility company and have been using hand tools for 28 years. Repetitive motion mostly, nut drivers and screwdrivers, and have trembling issues when I go to use a pen. It hurts to hold it, and my thumb and index finger are uncontrollable so writing my signature is a major undertaking. Is this symtoms of carpel tunnel. I have been heavy handed with my tools, bacause my trade required me to be, and at 62 years of age, I am feeling the results.