I had been working on a project for several weeks that required intense concentration. I had not been getting enough sleep. I had been drinking more coffee than usual. I had skipped a few meals. Intense pressure in temples that felt like my head was in a vise sensitivity to light and sound nausea and vomiting visual disturbances, including halos around lights and temporary blindness in one eye. I took ibuprofen I put a cold compress on my forehead I tried to sleep it off I took a hot shower. I took some pain medication. I put a cold compress on my forehead. I closed my eyes and rested for a while. I need to be more careful about what I eat, drink more water, get more sleep, reduce stress in my life, see a doctor if the headache persists.