Eating time is longer than half an hour or so, so short time to take the chopsticks of the hand is always moving, if this can also appear to be sore hands, you can consider the cervical spine there is no problem, because the cervical spine if there are a variety of problems will be compressed nerves lead to abnormal sensations in the arm and hand, including what you said to take the hand soreness, and some of them will be cycling with numbness in the hand, soreness, bloating sensation.
So move your body more after work, especially do a little neck self-care, you can lean on the back of the chair and tilt your head back to play a traction role. Slowly turn your neck. Nod your head and write the word "rice". Then there is more activity of the fingers, ten fingers cross reverse, stretching the arm.