So I'm really freaking out here about two weeks ago I had this random pulsating headache on the left side of my head. It came on instantly. Normally when I have a headache, it gradually builds until I need to take some aspirin or something. This however came out no where. It wasn't so severe that I was doubling over with pain or anything just enough to get me to start freaking out I took so aspirin and I feel asleep I woke up it was gone. I had gotten my eyes dialated that day so I thought the not being able to see clearly was the cause. However, today it happen again. Just a random pulsating pain same spot as last time. The pain starts about middle top left head and pulsates all the way down to my ear. I almost went into a full blown panic attack. I normally can tell what my headaches are from, lack of caffeine, sleep, stress, etc but this one feels new to me. Has anyone experienced this or know what this is??