Stress/relaxation following stress/anxiety |
Physical activity |
Fatigue/prolonged overexertion/sexual activity |
Sleep |
Lack/too much/too little/irregular pattern/changes |
Hormonal factors |
Menstruation/menopausal fluctuations |
Environment |
High altitude |
Heat |
Weather changes |
Loud sound |
Flashing lights/bright light/sunlight |
Sharp blow to head |
Changes in barometric pressure |
Odours |
Strong odours/perfumes/fumes/smoke |
Medication |
Nitrates/theophylline/reserpine/nifedipine/indomethacin/cimetidine/oral contraceptives/vasodilators |
Dietary |
Fasting/hunger/skipped meal |
Dehydration |
Ice-cream/ice-water |
Aged cheese/nuts/onions |
Chocolate |
Wine/beer/alcohol |
Foods containing monosodium glutamate/tyramine/nitrate |
Caffeine overuse |
Infections |
Upper respiratory infections |
Cervical spine problems |
Prolonged fixed position of neck |
Discopathy |
Cervical muscle spasm |
Temporomandibular joint disorders |
Parafunctional |
Malocclusion |
inflammation |