I have been experiencing really sharp pains on both sides of my temple, more so on my left side and it goes further onto my head on that side. It hurts to stand, it's worse when I stand. I also get really dizzy, I'm seeing weird things, and I'm nauseous.

This has been happening for a while and I went to the eye doctor for "headaches" behind my eyes, got glasses and it hasn't helped. I work with autistic kids with behavior issues, I got hit two weeks ago really hard on the left side of my head where it hurts. Not sure if that is relevant.

What are your opinions of what it could be?