Jaw clenching and headache

Clenching while concentrating or sleeping can leave the jaw tired, tender, stiff, or difficult to open, with headache on waking or after stressful periods. Other symptoms can have different sources: congestion and facial pressure may occur with allergic rhinitis, chronic sinusitis, or a cold; fever and body symptoms may accompany COVID-19, dengue fever, or heat exhaustion; thirst and dark urine can point toward dehydration. Anxiety can increase muscle tension, but a headache should not automatically be attributed to stress.

At rest, let the lips meet lightly while keeping the teeth apart and the tongue relaxed. Reduce gum and chewy foods, use a warm compress on the jaw muscles, and practise gentle jaw movement without forcing a stretch. Drink fluids regularly, especially in hot weather, and keep a note of sleep, clenching, headache timing, congestion, fever, and triggers. A clinician or dentist can discuss a night guard when appropriate; do not alter your bite with unregulated devices.

Arrange assessment if headaches recur, worsen, follow a new pattern, or come with jaw locking, tooth damage, vision changes, or persistent vomiting. Seek emergency help for a sudden severe headache, weakness, confusion, fainting, stiff neck with fever, trouble speaking, or headache after a significant injury. Heat exposure with confusion or inability to keep fluids down also needs urgent care.

Ask whether your jaw muscles or joint are tender, whether another headache pattern needs consideration, and whether dental review is useful. Tell the clinician about waking with jaw soreness, tooth wear, medicines, sleep quality, congestion, fever, fluid intake, and any neurological symptoms.