What does headache feel like with jet lag?

Crossing time zones can leave the sleep-wake rhythm out of step with local daylight, meals, and bedtime. Headache may occur with daytime sleepiness, difficulty concentrating, irritability, poor sleep, reduced appetite, or digestive discomfort. Dehydration, long travel, cramped seating, missed meals, and alcohol can add to the discomfort. Headache after travel has several possible causes, so the timing and other symptoms matter.

Drink fluids, eat regular light meals, and use daylight and gentle activity to help align with local time. Keep naps brief enough that they do not prevent sleep at night, and make the sleeping space dark and quiet. Limit alcohol and late caffeine. Use only pain medicine that is suitable for you and follow its label directions; ask a pharmacist if you take other medicines or have a health condition.

Seek emergency care for a sudden severe headache, confusion, fainting, new weakness, trouble speaking, loss of vision, seizure, fever with a stiff neck, or breathing difficulty. Arrange medical assessment if the headache is worsening, follows a head injury, comes with repeated vomiting, or does not settle as your sleep routine recovers.

Ask how to adjust sleep and light exposure for your destination, whether a medicine or supplement is appropriate for you, and how to distinguish jet lag from another travel-related illness. Tell the clinician about your route, time zones crossed, sleep, hydration, meals, medicines, and when the headache began.