6 Answers

stress, allergies, tension, certain foods,spices, lack of sleep, to much sleep, depression, need eyeglass?, a blood clot, health problems, a dead beat husband! loud nosies, hair bows/pony tails, dehydration, strong odors, chemical odors, the list is longer......

What doesn't cause one?

Most of mine is caused by stress and lack of sleep. Sometimes if I'm around someone with a real loud cologne or perfume gives me a headache.

My bills.

The knowledge you seek can be found at ;https://www.bettermedicine.com  www.medicine.com   www.what-causes-headaches.com    Hope this helps .        Bill

Women and beer

Stress, Alcohol, Perfumes, Certain lighting, The sun, Noise, Lack of sleep, A head injury, Side effects of medications, Smoking too many cigarettes, Certain foods