Headache when exercising: what to know

Hard effort can widen blood vessels and tighten muscles in the neck and scalp, producing an exertion headache during or soon after activity. Heat, heavy sweating, inadequate fluids, or exercising without enough food can add to the strain. A migraine may be brought on by exertion and can include nausea or sensitivity to light. A respiratory infection, Common Cold, or COVID-19 may make normal exercise feel unusually demanding. Heat Exhaustion can cause headache with dizziness, weakness, heavy sweating, or nausea. These symptoms do not establish one diagnosis by themselves.

Stop exercising, move to a cool place, loosen tight clothing, and sip water. Do not restart while the headache, dizziness, nausea, or unusual weakness continues. Once well, return gradually with a gentle warm-up and avoid intense effort in extreme heat. Keep a record of the activity, intensity, temperature, fluids, food, sleep, and symptoms. Get individual advice before using pain medicine repeatedly, especially if you have kidney, stomach, heart, or blood-pressure problems.

Get emergency help for a thunderclap headache, collapse, confusion, weakness or numbness, trouble speaking, seizure, chest pain, severe breathlessness, repeated vomiting, or a stiff neck with fever. Seek prompt review for a first exercise headache, pain that peaks suddenly, headaches that recur with modest activity, or symptoms that do not settle with rest and fluids. Fever with severe body aches after outdoor exposure also warrants medical advice because Dengue Fever is possible in some settings.

Ask whether you should pause particular workouts, how to hydrate safely in your conditions, whether your medicines or blood pressure contribute, and what exercise symptoms require emergency care.