I had a headache yesterday n it continued when iI woke up. I ate a bowl of lucky charms. Maybe a half hour later (headache getting worse) my friend had the ac on in the car n I got cold. I got really heavy goosebumps n started shivering. We turned the ac off n it didn t go away, I was still shivering and couldn t stop no matter how hard i tried. Headache getting worse n I felt nauseas. We pulled over n I forced myself to puke n than kept puking without having to force it. Still with goosebumps n shivering, dryheaving n puking up flem I drank some water n puked it right back up. This went on about a half hr until I drank some gingerale slowly still puked a little n than it all slowly stopped. I still felt nauseas but stopped puking. N the headache went away. What could this be? Diabetes runs in my family n my half brother died of brain tumors so it scared me into thinking maybe I have a brain tumor as well. Idk but it was very weird and happened out of nowhere. Thanks for your time!!