As told earlier, your muscles are attached to the jaw and to the head. Whenever, you perform any jaw movements such as chewing, grinding or clenching, if not in physically or physiologically healthy state, your TMJ imparts tightening in those muscles and consequently, the pain from your jaw gets transferred to other places in the skull, causing headaches, or in severe cases, migraines.
Apart from migraines, you may also experience toothache, tinnitus, pain in neck and shoulders. This happens as a result of imbalance in the forces applied by jaw while moving. Muscles of the craniofacial system become hyperactive and start getting fatigued frequently, which results in sensation of pain in those areas as well as impaired function.
You may also feel it difficult to chew properly and dietary choices alter considerably towards soft food products.