TMJ dysfunction is most common in those 20 to 40 years of age and is more common in women than in men. Some of the most common TMJ symptoms include: Jaw pain. Headaches. Earaches. Pain in the neck or shoulders. Difficulty opening your mouth wide. Jaws that "lock" in the open- or closed-mouth position. Clicking, popping, or grating sounds in the jaw joint when opening or closing your mouth. A tired feeling in your face. Difficulty chewing. Tinnitus, or ringing in your ears. Changes in the way your teeth fit together. Swelling on the side of your face. Tooth pain.