TMJ can be very painful and result in migraine headaches, sleep apnea, lockjaw, neck pain, and shoulder pain. The most common symptoms associated with TMJ is clicking of the jaw. This clicking is caused by a misalignment of the joint. Your jaw joint is one of the more complex joints in the body considering we move our jaw more than 10,000 times a day. If the jaw's natural movement is disturbed, problems can occur with chewing, yawning, and overall movement.