Carpal tunnel is a narrow passageway in your wrist through which your median nerve and some tendons of hand pass through. If because of any reason there is a pressure on your nerve, you could start feeling numbness, tingling, pain and weakness in your hand and forearm.
If you have pain in your jaw with movements of jaw like eating, yawing or regardless of movements; you should consult a physiotherapist who specializes in treating Jaw or TMJ.
Your jaw is a Hinge joint that allows movements side to side, forward- backward and opening-closing. For normal function of jaw, one should have good mobility and good muscle flexibility. But sometimes stiffness, muscle tension, bad posture, degeneration of joint surfaces because of multiple causes can affect the function of jaw and cause jaw pain.