I have been experiencing a recurring headache, and I've noticed a very specific pattern. Whenever I go to college, I almost always develop this headache on the same day. My college is about 16–17 km from my home, and I travel by bike both ways. I also spend some time walking around the market area on those days. The headache usually starts while I'm riding my bike back home from college, and by the time I reach home, it becomes significantly worse. Interestingly, if I don't go to college for 10–15 days, I don't experience this headache at all. But the very next day I attend college again, it comes back. The pain is not in my forehead. It is mainly located around my eyebrows and just above my eyes. Sometimes the pain becomes quite severe. I do not have fever, nausea, or vomiting with it. I'm not sure what is causing it. I wonder if it could be related to traveling by bike, wind exposure while riding, sunlight, eye strain, dehydration, weakness, or fatigue, but I honestly don't know.